NoSignal — fully-offline Arch → Hyprland desktop installer

Single-script builder (nosignal.sh) that turns a stock Arch Linux ISO into a
fully-offline installer for a themed Hyprland + caelestia (Quickshell) desktop:
matching SDDM greeter, Btrfs/Limine bootable snapshots, chwd-style GPU
detection, and a curated "os updates" layer (keybind cheatsheet, settings
panels, system polish, on-box management skill). See README.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,36 @@
+# Build artifacts
+work/
+*.iso
+build*.log
+
+# Editor / OS cruft
+*.swp
+.DS_Store
+
+# Offline payload cache (multi-GB: built AUR pkgs + repo mirror + chroot)
+offline/
+
+# VM test rig (QEMU certification harness) — maintainer-only dev tooling,
+# kept LOCAL (scripts + disks/firmware/screenshots/logs all stay off the repo).
+vm/
+
+# squashfs debug extracts
+sq/
+*.sfs
+
+# Integration inbox from live test boxes — content is fully folded into
+# "os updates/" + nosignal.sh; kept locally for reference only
+# (-done = archived rounds; hypros-* = pre-rename rounds 2+3)
+nosignal-handoff/
+nosignal-handoff-done/
+hypros-handoff/
+hypros-handoff-done/
+
+# Dev-internal docs — kept LOCAL only, never in the public repo:
+# the dev status log, hardware-test briefs, QA/builder handoff, and the
+# internal phase/design docs (infra hostnames, dev-machine specs, process).
+NOTES.md
+ONBOX-BRIEF-*.md
+dev-docs/
+docs/PHASE2-DESIGN.md
+docs/PHASE3-OFFLINE.md

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Gavin Nugent
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,202 @@
+# NoSignal OS
+
+A single-script builder that turns a stock Arch Linux ISO into a **fully
+offline installer** for a ready-to-use **Hyprland desktop**: Arch +
+[Hyprland](https://hyprland.org) + the
+[caelestia](https://github.com/caelestia-dots/caelestia) dotfiles/shell, with
+a themed [SDDM](https://github.com/sddm/sddm) login screen that matches the
+desktop.
+
+Everything needed for the install is bundled **on the ISO** — a complete
+pacman repo (every package incl. all GPU driver variants, with the caelestia
+stack pre-built from the AUR at ISO-build time), the pinned dotfiles, the
+theme. **No internet is needed to install or on first boot**: the machine
+boots straight into the themed login screen and a fully configured desktop.
+
+> NoSignal is the *ISO builder*. It bundles and installs the upstream caelestia
+> dotfiles; it is not affiliated with that project.
+
+> ⚠️ **Experimental — and built to be modified.** NoSignal OS is young and
+> opinionated; expect rough edges. It is designed to be reshaped by *you*: every
+> NoSignal tweak sits in a config-override layer on top of stock caelestia
+> (delete a file to revert one), and the installed system ships an **on-box AI
+> guide** so you can customise and fix it with
+> [Claude Code](https://claude.com/claude-code) — see
+> **[Customising the desktop](#customising-the-desktop-on-box-ai-guide)** below.
+
+## What you get on the installed system
+
+- **Hyprland + caelestia shell** (Quickshell), restyled with a restrained
+  flat look (no blur/glassmorphism) and the OS's own Moebius-style wallpaper
+  set (dynamic Material palette generated from the wallpaper).
+- **Themed SDDM login** that mirrors the desktop palette/wallpaper/font
+  (`sudo sddm-theme-sync` re-syncs it after you change wallpaper).
+- **Omarchy-style keybindings** — `Super+K` opens a searchable cheatsheet of
+  every bind. Universal `Super+C`/`Super+V` copy/paste, `Print` = region
+  screenshot, `Super+Space` launcher, `Super+D` dashboard/calendar,
+  `Super+Grave` workspace overview.
+- **Software story**: `yay` (AUR), the **Shelly** GUI store on `Super+I`
+  (repos + AUR + Flathub), flatpak preconfigured.
+- **Btrfs + bootable snapshots**: every package transaction snapshots
+  (snapper + snap-pac), and each snapshot appears as a bootable entry in the
+  **Limine** menu (10-second timeout) — roll back a bad update from the boot
+  screen.
+- **`nosignal-update`**: one command for snapshot → package upgrade → layer
+  migrations; a Settings → Updates page shows pending counts.
+- **Gaming (opt-in)**: the `[multilib]` repo is enabled and Omarchy-installer
+  shims are included, so
+  [DeckShift](https://github.com/28allday/DeckShift)-style Steam gaming
+  sessions can be added post-install — including a login fix that keeps a
+  password on cold boots. Not active unless you set it up.
+- Bluetooth, printing (CUPS + network discovery), power-profiles, zram swap,
+  ufw on, locale/timezone/keymap of your choice.
+
+## Customising the desktop (on-box AI guide)
+
+NoSignal OS is meant to be tinkered with, so nothing is locked down. Every
+NoSignal change lives in a **config-override layer** at `~/.config/caelestia/`
+on top of stock caelestia — edit a file to change behaviour, delete it to fall
+back to the default. Updates and rollbacks are safe: `nosignal-update` snapshots
+before every upgrade, and each snapshot is a bootable entry in the Limine menu.
+
+To make changes easy — even if you don't know the internals — the installed
+system ships an **on-box AI skill for [Claude Code](https://claude.com/claude-code)**.
+It explains exactly what's safe to edit, how to change keybinds / monitors /
+wallpaper / theme, how updates and snapshots work, how to install software, and
+how to recover the desktop if the shell ever fails to start.
+
+- **Just ask.** Run `claude` on a NoSignal machine and it **auto-discovers** the
+  `nosignal` skill — say *"customise my NoSignal desktop"* or *"the bar didn't
+  load, fix it"* and it reads the guide before touching anything.
+- **Point an assistant at the files directly** if you prefer:
+  - `~/.claude/skills/nosignal/SKILL.md` — the Claude skill (guardrails + tasks)
+  - `~/.local/share/nosignal/ONBOX-AI-NOTES.md` — the full system briefing
+  - `~/.local/share/nosignal/NoSignal-keybindings.md` — the keybinding reference
+
+The skill is strictly for managing **your installed system** — it carries no
+build/release tooling, and it always reads the guardrails before editing config.
+
+## Build the ISO
+
+The builder runs on an **Arch Linux** (or Arch-based) host with an internet
+connection — it uses `pacman`, `makepkg`, and `devtools` to assemble the offline
+package set, so it can't run on a non-Arch distro.
+
+**1. Install the build dependencies:**
+
+```bash
+sudo pacman -S --needed git libisoburn squashfs-tools coreutils devtools pacman-contrib
+```
+
+**2. Clone this repository and enter it:**
+
+```bash
+git clone https://github.com/28allday/NoSignal-OS.git
+cd NoSignal-OS
+```
+
+**3. Download a stock Arch Linux ISO into this folder.** The filename must start
+with `archlinux-`. Grab the latest from any mirror, e.g.:
+
+```bash
+curl -LO https://geo.mirror.pkgbuild.com/iso/latest/archlinux-x86_64.iso
+```
+
+(or pick a mirror from <https://archlinux.org/download/>.)
+
+**4. Run the builder:**
+
+```bash
+./nosignal.sh
+```
+
+It downloads the full package closure and builds the AUR pieces in a clean
+chroot — allow roughly **15–40 minutes** on the first run (you'll be asked for
+`sudo`). Everything is cached in `./offline/`, so later rebuilds take a couple of
+minutes.
+
+**5. Done.** `nosignal-arch-YYYYMMDD.iso` (~4 GB) appears in the folder —
+Ventoy-compatible and `dd`-bootable. Write it to a USB stick and install (see
+**Install** below).
+
+## Install
+
+**1. Write the ISO to a USB stick.** Replace `/dev/sdX` with your USB device
+(check it with `lsblk` first — this erases the whole stick):
+
+```bash
+sudo dd if=nosignal-arch-YYYYMMDD.iso of=/dev/sdX bs=4M status=progress conv=fsync
+```
+
+(or just drop the `.iso` onto a [Ventoy](https://www.ventoy.net) USB.)
+
+**2. Boot the USB** on the target machine — **UEFI only** (no BIOS/MBR).
+
+**3. Follow the installer.** It is **fully offline** (no network questions) and
+asks for: hostname, user, password, your region (timezone / locale / keyboard),
+and the target disk. It then **wipes that disk** — 1G EFI + btrfs with
+`@`/`@home`/`@snapshots`/`@log` subvolumes and the Limine bootloader — and runs
+a clean, centred progress screen. **It erases the chosen disk — back up first.**
+
+**4. Reboot** into the themed SDDM login and your desktop. Connect Wi-Fi from the
+desktop's network panel; once you're online, run `sudo pacman -Syu` one time to
+sync the package databases.
+
+## GPU detection
+
+The installer auto-detects the GPU(s) and installs the right drivers,
+borrowing CachyOS [`chwd`](https://github.com/CachyOS/chwd)'s **method** (PCI
+display-class scan → vendor-id → driver set) but implemented natively, so the
+ISO stays vanilla Arch (no CachyOS repos / lib32 / cachyos-kernel deps).
+Multiple GPUs union their package sets (e.g. an Intel/AMD iGPU + an NVIDIA
+dGPU). All variants are bundled in the offline repo; only the matching subset
+is installed.
+
+| Detected | Packages |
+|----------|----------|
+| NVIDIA (`10de`) | `nvidia-open-dkms nvidia-utils egl-wayland libva-nvidia-driver nvidia-settings linux-headers` + DRM/KMS setup |
+| AMD (`1002`) | `mesa vulkan-radeon` |
+| Intel (`8086`) | `mesa vulkan-intel intel-media-driver` |
+| VM guest (`1af4`/`1b36`/`1234`/`15ad`/`80ee`) | `qemu-guest-agent spice-vdagent` |
+| Unknown | `vulkan-swrast` (software fallback) |
+
+For NVIDIA it also does the Wayland-critical bits (the same ones chwd does):
+early-loads `nvidia nvidia_modeset nvidia_uvm nvidia_drm` in the initramfs,
+drops the `kms` hook so nouveau doesn't grab the card, sets
+`nvidia_drm.modeset=1`, and writes the EGL/VA env to `/etc/environment`.
+
+## Notes / current limitations
+
+- **UEFI only.** No BIOS/MBR boot.
+- **No disk encryption** yet.
+- **NVIDIA uses the open kernel module** (`nvidia-open-dkms`), which is for
+  Turing and newer (RTX 20-series+). Older Maxwell/Pascal cards would need
+  the proprietary/legacy branch — not yet selected by generation.
+- The bundled packages are a snapshot from build day — run `sudo pacman -Syu`
+  once online.
+
+## Credits
+
+NoSignal OS is a thin builder around excellent upstream work — it bundles,
+themes, and installs these projects rather than replacing them. Please support
+the originals. Each remains under its own licence.
+
+- **[Arch Linux](https://archlinux.org)** — the base system and live ISO.
+- **[Hyprland](https://hyprland.org)** — the Wayland compositor.
+- **[caelestia](https://github.com/caelestia-dots/caelestia)** — the desktop
+  dotfiles and shell that define the look and most of the UX. The installed
+  shell is a light soft-fork; the CLI / theming engine is upstream, unchanged.
+- **[Quickshell](https://quickshell.outfoxxed.me)** — the runtime the shell runs on.
+- **[SDDM](https://github.com/sddm/sddm)** — the login manager (themed to match).
+- **[Limine](https://github.com/limine-bootloader/limine)**, with **snapper** and
+  **snap-pac** — bootloader and Btrfs snapshot tooling (bootable snapshots).
+- **[Omarchy](https://omarchy.org)** — keybinding layout and UX inspiration, and
+  its prebuilt `[omarchy]` package repo for the Limine snapshot tools.
+- **[CachyOS `chwd`](https://github.com/CachyOS/chwd)** — the GPU-detection
+  *method* (PCI scan → vendor-id → driver set), reimplemented natively here.
+- Fonts: **JetBrains Mono Nerd Font** and **Material Symbols**.
+
+## License
+
+MIT — see [LICENSE](LICENSE). The wallpaper art set is the project author's
+own original work and ships with the ISO under the same licence.

assets/fastfetch-config.jsonc

@@ -0,0 +1,138 @@
+{
+  "$schema": "https://github.com/fastfetch-cli/fastfetch/raw/dev/doc/json_schema.json",
+  "logo": {
+    "type": "file",
+    "source": "~/.config/fastfetch/logo.txt",
+    "color": { "1": "green" },
+    "padding": {
+      "top": 2,
+      "right": 6,
+      "left": 2
+    }
+  },
+  "modules": [
+    "break",
+    {
+      "type": "custom",
+      "format": "\u001b[90m┌──────────────────────Hardware──────────────────────┐"
+    },
+    {
+      "type": "host",
+      "key": " PC",
+      "keyColor": "green"
+    },
+    {
+      "type": "cpu",
+      "key": "│ ├",
+      "showPeCoreCount": true,
+      "keyColor": "green"
+    },
+    {
+      "type": "gpu",
+      "key": "│ ├",
+      "detectionMethod": "pci",
+      "keyColor": "green"
+    },
+    {
+      "type": "display",
+      "key": "│ ├󱄄",
+      "keyColor": "green"
+    },
+    {
+      "type": "disk",
+      "key": "│ ├󰋊",
+      "keyColor": "green"
+    },
+    {
+      "type": "memory",
+      "key": "│ ├",
+      "keyColor": "green"
+    },
+    {
+      "type": "swap",
+      "key": "└ └󰓡 ",
+      "keyColor": "green"
+    },
+    {
+      "type": "custom",
+      "format": "\u001b[90m└────────────────────────────────────────────────────┘"
+    },
+    "break",
+    {
+      "type": "custom",
+      "format": "\u001b[90m┌──────────────────────Software──────────────────────┐"
+    },
+    {
+      "type": "command",
+      "key": " OS",
+      "keyColor": "blue",
+      "text": "echo \"NoSignal\""
+    },
+    {
+      "type": "kernel",
+      "key": "│ ├",
+      "keyColor": "blue"
+    },
+    {
+      "type": "wm",
+      "key": "│ ├",
+      "keyColor": "blue"
+    },
+    {
+      "type": "de",
+      "key": " DE",
+      "keyColor": "blue"
+    },
+    {
+      "type": "terminal",
+      "key": "│ ├",
+      "keyColor": "blue"
+    },
+    {
+      "type": "packages",
+      "key": "│ ├󰏖",
+      "keyColor": "blue"
+    },
+    {
+      "type": "wmtheme",
+      "key": "│ ├󰉼",
+      "keyColor": "blue"
+    },
+    {
+      "type": "command",
+      "key": "│ ├󰸌",
+      "keyColor": "blue",
+      "text": "theme=$(caelestia scheme get 2>/dev/null | awk -F': *' '/^Name:/{print $2; exit}'); [ -n \"$theme\" ] || theme=dynamic; echo -e \"$theme \\e[38m●\\e[37m●\\e[36m●\\e[35m●\\e[34m●\\e[33m●\\e[32m●\\e[31m●\""
+    },
+    {
+      "type": "terminalfont",
+      "key": "└ └",
+      "keyColor": "blue"
+    },
+    {
+      "type": "custom",
+      "format": "\u001b[90m└────────────────────────────────────────────────────┘"
+    },
+    "break",
+    {
+      "type": "custom",
+      "format": "\u001b[90m┌────────────────────Age / Uptime────────────────────┐"
+    },
+    {
+      "type": "command",
+      "key": "󱦟 OS Age",
+      "keyColor": "magenta",
+      "text": "birth_install=$(stat -c %W /); current=$(date +%s); time_progression=$((current - birth_install)); days_difference=$((time_progression / 86400)); echo $days_difference days"
+    },
+    {
+      "type": "uptime",
+      "key": "󱫐 Uptime",
+      "keyColor": "magenta"
+    },
+    {
+      "type": "custom",
+      "format": "\u001b[90m└────────────────────────────────────────────────────┘"
+    },
+    "break"
+  ]
+}

assets/fastfetch-logo.txt

@@ -0,0 +1,26 @@
+                ⢀⣀⣤⣴⣶⣶⣿⣿⣿⣿⣿⣿⣿⣿⣶⣶⣦⣤⣀⡀
+            ⢀⣠⣴⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣦⣄⡀
+         ⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄⡀
+       ⢀⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣦⡀
+     ⢀⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣦⡀
+    ⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄
+   ⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣆
+  ⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣆
+ ⢰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⢿⣿⣿⣿⣿⣿⠿⡿⠿⠿⠿⣿⣿⣿⠿⠿⠿⠿⢿⣿⣿⣿⣿⠿⣿⣿⣿⣿⣿⡿⢿⣿⣿⣿⣿⡆
+⢀⣿⣿⣿⣿⣶⡶⠸⣿⣿⣿⣿⠛⠛⠃⠛⠛⠛⢻⣿⡟⢐⣓⣒⣒⣒⣛⣿⣿⠰⠶⠶⠶ ⣿⣿⣛⡋⢈⣉⡭⠿⢿⣿⡇⢸⣿⣿⣿⣿⣿⡀
+⢸⣿⣿⣿⣿⣿⢃⡄⢻⣿⣿⣿⣿⣿⠃⣿⣿⡏⢸⣏⡄⢸⣗⣒⣒⣒⣺⣯⣉⡉⣉⣉⣉⣉⣉⣿⡿⢁⣿⣷⡒⣶⣾⣿⡇⢸⣿⣿⣿⣿⣿⡇
+⣿⣿⣿⣿⠿⢁⣾⣿⣄⠻⢿⣿⡿⢃⣼⣿⣿⡇⣸⣿⡇⢸⠁⣤⣤⡤⢸⣿⣿⣤⣶⣶⣶⢀⣿⣿⣥⣾⠩⣤⠄⣙⢻⣿⣇⠸⠿⠿⠟⣩⣿⣿
+⣿⣿⣿⣷⣶⣿⣿⣿⣿⣷⣶⣷⣶⣿⣿⣿⣤⣴⣿⣿⣧⣾⣦⣶⣶⣶⣼⣿⣿⣿⣿⣤⣤⣾⣿⣿⣿⣿⣶⣶⣾⣿⣿⣿⣿⣷⣶⣶⣿⣿⣿⣿
+⣿⣿⣿⣿⣿⣿⣿ ⠙⢿ ⢸⡟⢁⣠⡀⠙⣿⣿⣿⡏⠠⣤⣿⡇⢸⡟⠁⣠⣄⣙⣿ ⠈⢻⡇⢸⣿⡏ ⠘⣿⡇ ⣿⣿⣿⣿⣿⣿⣿⣿
+⣿⣿⣿⣿⣿⣿⣿ ⣦⡀ ⢸⡄⠘⠿⠟ ⣿⣿⣿⡷⠦ ⢹⡇⢸⣇ ⠿⠄ ⣿ ⢰⡄⠁⢸⡟ ⠘ ⢹⡇ ⠿⢿⣿⣿⣿⣿⣿⣿
+⢸⣿⣿⣿⣿⣿⣿⣶⣿⣿⣶⣾⣿⣶⣦⣶⣾⣿⣿⣿⣶⣶⣶⣿⣷⣾⣿⣷⣶⣶⣾⣿⣶⣾⣿⣶⣾⣷⣾⣿⣷⣶⣷⣶⣶⣾⣿⣿⣿⣿⣿⡇
+⠈⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠁
+ ⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇
+  ⠹⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠏
+   ⠹⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠏
+    ⠙⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠋
+     ⠈⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⠁
+       ⠈⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠟⠁
+         ⠈⠙⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠋⠁
+            ⠈⠙⠻⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠟⠋⠁
+                ⠈⠉⠛⠻⠿⠿⣿⣿⣿⣿⣿⣿⣿⣿⠿⠿⠟⠛⠉⠁

assets/plymouth/nosignal/nosignal.plymouth

@@ -0,0 +1,8 @@
+[Plymouth Theme]
+Name=NoSignal
+Description=NoSignal boot splash — NO SIGNAL logo on black
+ModuleName=script
+
+[script]
+ImageDir=/usr/share/plymouth/themes/nosignal
+ScriptFile=/usr/share/plymouth/themes/nosignal/nosignal.script

assets/plymouth/nosignal/nosignal.script

@@ -0,0 +1,43 @@
+# NoSignal Plymouth splash — the "NO SIGNAL / 入力信号なし" logo centred on black.
+# Shows between Limine and the SDDM greeter (and on shutdown/reboot). The logo's
+# black disc blends into the background, so only the green text floats on black.
+
+# Solid black background.
+Window.SetBackgroundTopColor(0, 0, 0);
+Window.SetBackgroundBottomColor(0, 0, 0);
+
+screen_width = Window.GetWidth();
+screen_height = Window.GetHeight();
+
+# Scale the logo to ~67.5% of the shorter screen edge (0.45 enlarged by half),
+# keeping aspect ratio, so it is a sensible size on both 1080p and 4K.
+short_edge = screen_height;
+if (screen_width < screen_height)
+    short_edge = screen_width;
+target = short_edge * 0.675;
+
+orig = Image("logo.png");
+scale = target / orig.GetHeight();
+logo.image = orig.Scale(orig.GetWidth() * scale, orig.GetHeight() * scale);
+logo.sprite = Sprite(logo.image);
+logo.sprite.SetX(screen_width / 2 - logo.image.GetWidth() / 2);
+logo.sprite.SetY(screen_height / 2 - logo.image.GetHeight() / 2);
+
+# Static splash — full opacity, no animation.
+logo.sprite.SetOpacity(1);
+
+# Subtle status line (fsck / "press a key" style messages) below the logo.
+message.sprite = Sprite();
+message.sprite.SetX(20);
+message.sprite.SetY(screen_height - 36);
+fun message_callback(text) {
+    message.image = Image.Text(text, 0.66, 0.84, 0.45);   # muted NoSignal green
+    message.sprite.SetImage(message.image);
+}
+Plymouth.SetMessageFunction(message_callback);
+
+# On quit (handing off to the greeter), snap the logo to full opacity.
+fun quit_callback() {
+    logo.sprite.SetOpacity(1);
+}
+Plymouth.SetQuitFunction(quit_callback);

assets/scheme-shadotheme.json

@@ -0,0 +1 @@
+{"name": "shadotheme", "flavour": "default", "mode": "dark", "variant": "tonalspot", "colours": {"primary_paletteKeyColor": "6f72ac", "secondary_paletteKeyColor": "75758e", "tertiary_paletteKeyColor": "9d648f", "neutral_paletteKeyColor": "78767b", "neutral_variant_paletteKeyColor": "777680", "background": "131317", "onBackground": "e5e1e7", "surface": "131317", "surfaceDim": "131317", "surfaceBright": "39393d", "surfaceContainerLowest": "0e0e11", "surfaceContainerLow": "1b1b1f", "surfaceContainer": "1f1f23", "surfaceContainerHigh": "2a292e", "surfaceContainerHighest": "353438", "onSurface": "e5e1e7", "surfaceVariant": "46464f", "onSurfaceVariant": "c7c5d1", "inverseSurface": "e5e1e7", "inverseOnSurface": "303034", "outline": "918f9a", "outlineVariant": "46464f", "shadow": "000000", "scrim": "000000", "surfaceTint": "bfc1ff", "primary": "bfc1ff", "onPrimary": "282b60", "primaryContainer": "6f72ac", "onPrimaryContainer": "000028", "inversePrimary": "565992", "secondary": "c5c4e0", "onSecondary": "2e2f44", "secondaryContainer": "44455c", "onSecondaryContainer": "b3b3ce", "tertiary": "f4b2e2", "onTertiary": "4e1e45", "tertiaryContainer": "ba7eaa", "onTertiaryContainer": "000000", "error": "ffb4ab", "onError": "690005", "errorContainer": "93000a", "onErrorContainer": "ffdad6", "primaryFixed": "e0e0ff", "primaryFixedDim": "bfc1ff", "onPrimaryFixed": "12144a", "onPrimaryFixedVariant": "3e4278", "secondaryFixed": "e1e0fd", "secondaryFixedDim": "c5c4e0", "onSecondaryFixed": "191a2e", "onSecondaryFixedVariant": "44455c", "tertiaryFixed": "ffd7f1", "tertiaryFixedDim": "f4b2e2", "onTertiaryFixed": "35082f", "onTertiaryFixedVariant": "67355d", "term0": "353434", "term1": "a875ff", "term2": "44def5", "term3": "ffdcf2", "term4": "97aad7", "term5": "b29feb", "term6": "9dceff", "term7": "e8d3de", "term8": "ac9fa9", "term9": "bd95ff", "term10": "89ecff", "term11": "fff0f6", "term12": "b4c1dc", "term13": "c8b5f5", "term14": "bae0ff", "term15": "ffffff", "rosewater": "f7eff9", "flamingo": "e8def3", "pink": "e1d8ff", "mauve": "bdb9ff", "red": "bfa6fe", "maroon": "c7b6ed", "peach": "e0c2f9", "yellow": "ffecf3", "green": "c8e3ff", "teal": "d2e0ff", "sky": "cedaff", "sapphire": "b5c5ff", "blue": "aeb8ff", "lavender": "c6c8ff", "klink": "7083d2", "klinkSelection": "6f83d2", "kvisited": "7e73db", "kvisitedSelection": "7d73db", "knegative": "9d69ff", "knegativeSelection": "9b6aff", "kneutral": "c794ff", "kneutralSelection": "c794ff", "kpositive": "60adff", "kpositiveSelection": "60adff", "text": "e5e1e7", "subtext1": "c7c5d1", "subtext0": "918f9a", "overlay2": "7e7c86", "overlay1": "6b6972", "overlay0": "595860", "surface2": "48474e", "surface1": "37373d", "surface0": "25252a", "base": "131317", "mantle": "131317", "crust": "121216", "success": "B5CCBA", "onSuccess": "213528", "successContainer": "374B3E", "onSuccessContainer": "D1E9D6"}}

os updates/NoSignal-keybindings.md

@@ -0,0 +1,299 @@
+# NoSignal — Keybinding Map
+
+> **System:** Arch Linux (rolling), hostname `nosignal`, Wayland compositor **Hyprland**.
+> **Base:** [Caelestia](https://github.com/caelestia-dots) dotfiles + shell (QuickShell).
+> **NoSignal layer:** styling flattened, stock apps rebound, overview added, and
+> **the key layout follows Omarchy's defaults** (see
+> `omarchy-keys/README.md` for the full mapping and deviations).
+>
+> **Modifier legend:** `Super` = Windows/Meta key · `Ctrl` · `Alt` · `Shift`.
+> `XF86*` = laptop media/function keys. `mouse_up/down` = scroll wheel.
+>
+> Bindings are **variable-driven**. The tables below show the *resolved* keys
+> (variables from `variables.conf` + overrides applied). See "Source map" at the
+> end for where each value comes from and how to change it.
+
+---
+
+## 0. Built-in help (NoSignal addition)
+
+| Keys | Action |
+|------|--------|
+| `Super+K` | Open the searchable on-screen keybinding cheatsheet (Omarchy key) |
+| `Super+/` | Same (alias) |
+| `Super+F1` | Same (alias) |
+
+The cheatsheet is a fuzzel dmenu list — start typing to filter by key or by
+category tag (`[Window]`, `[Apps]`, `[Audio]`, …). Selecting a line copies that
+shortcut to the clipboard (if `wl-copy` is present); it never executes anything.
+
+**This very document is the single source of truth.** The on-screen help is
+*generated* from the tables below — `nosignal-keybinds` regenerates the list from
+this `.md` on every launch, so the cheatsheet can never drift from the doc.
+Edit the keymap here and the help updates itself.
+
+## 1. Shell & session
+
+| Keys | Action |
+|------|--------|
+| `Super+Space` | Open app launcher (Omarchy key) |
+| `Super` (tap & release) | Open app launcher (tapping another key/mouse cancels it) |
+| `Super+Escape` | Session menu (logout / shutdown / reboot) |
+| `Ctrl+Alt+Delete` | Session menu (alias, old key) |
+| `Super+D` | Toggle dashboard — calendar + widgets (was hover-only) |
+| `Super+Alt+Space` | Open Settings (Caelestia nexus) |
+| `Super+N` | Toggle sidebar |
+| `Super+Ctrl+K` | Show all shell panels |
+| `Super+Ctrl+L` | Lock screen (Omarchy key) |
+| `Super+Alt+L` | Restart shell daemon + re-lock (recover a broken lock) |
+| `Super+Shift+Comma` | Clear all notifications (Omarchy key) |
+| `Ctrl+Alt+C` | Clear all notifications (alias, old key) |
+| `Ctrl+Super+Shift+R` | Kill the Caelestia shell (`qs -c caelestia kill`) |
+| `Ctrl+Super+Alt+R` | Restart the Caelestia shell |
+| `Super+Alt+F12` | Fire a test notification (dev/debug) |
+
+## 2. Overview (NoSignal addition)
+
+| Keys | Action |
+|------|--------|
+| `Super+Grave` | Toggle the overview sidecar (moved off Super+Tab for Omarchy) |
+
+## 3. Workspaces
+
+| Keys | Action |
+|------|--------|
+| `Super+1`…`9`,`0` | Go to workspace 1–10 |
+| `Super+Tab` | Next workspace (Omarchy key) |
+| `Super+Shift+Tab` | Previous workspace (Omarchy key) |
+| `Super+Ctrl+Tab` | Back to former workspace (Omarchy key) |
+| `Ctrl+Super+1`…`9`,`0` | Go to workspace **group** 1–10 |
+| `Ctrl+Super+Left` / `Right` | Previous / next workspace |
+| `Super+Page_Up` / `Page_Down` | Previous / next workspace |
+| `Super` + scroll up/down | Next / previous workspace |
+| `Ctrl+Super` + scroll up/down | Jump workspace group ±10 |
+| `Super+S` | Toggle special (scratchpad) workspace |
+
+## 4. Moving windows between workspaces
+
+| Keys | Action |
+|------|--------|
+| `Super+Shift+1`…`9`,`0` | Move window to workspace 1–10 (Omarchy key) |
+| `Super+Alt+1`…`9`,`0` | Move window to workspace 1–10 (alias, old key) |
+| `Ctrl+Super+Alt+1`…`9`,`0` | Move window to workspace **group** 1–10 |
+| `Super+Alt+Page_Up` / `Page_Down` | Move window to workspace ±1 |
+| `Super+Alt` + scroll up/down | Move window to workspace ±1 |
+| `Ctrl+Super+Shift+Right` / `Left` | Move window to workspace +1 / −1 |
+| `Ctrl+Super+Shift+Up` | Move window to special workspace |
+| `Ctrl+Super+Shift+Down` | Move window to first empty workspace |
+| `Super+Alt+S` | Move window to special workspace |
+
+## 5. Window focus, move & resize
+
+| Keys | Action |
+|------|--------|
+| `Super+←/→/↑/↓` | Move focus left/right/up/down |
+| `Alt+Tab` / `Shift+Alt+Tab` | Cycle focus next / previous window (Omarchy key) |
+| `Super+Shift+←/→/↑/↓` | Move window in that direction |
+| `Super+Minus` / `Super+Equal` | Resize narrower / wider (−/+10% width) |
+| `Super+Shift+Minus` / `Equal` | Resize shorter / taller (−/+10% height) |
+| `Super+Alt+←/→/↑/↓` | Resize active window |
+| `Super` + left-drag | Move window (mouse) |
+| `Super+Z` + drag | Move window (mouse) |
+| `Super` + right-drag | Resize window (mouse) |
+| `Super+X` + drag | Resize window (mouse) |
+| `Ctrl+Super+\` | Center window |
+| `Ctrl+Super+Alt+\` | Resize to 55%×70% and center |
+| `Super+Alt+\` | Picture-in-picture (PiP) mode |
+| `Super+T` | Toggle floating (Omarchy key) |
+| `Super+J` | Toggle window split (Omarchy key) |
+| `Super+P` | Pseudo window (Omarchy key) |
+| `Super+O` | Pin window — show on all workspaces (Omarchy "pop out") |
+| `Super+F` | Fullscreen |
+| `Super+Alt+F` | Fullscreen **with borders** |
+| `Super+W` | Close window (Omarchy key) |
+
+## 6. Window groups (tabbed stacks)
+
+| Keys | Action |
+|------|--------|
+| `Super+G` | Toggle group on active window (Omarchy key) |
+| `Super+Alt+G` | Move window out of group (Omarchy key) |
+| `Super+Alt+Tab` | Cycle to next window in group (Omarchy key) |
+| `Super+Alt+Shift+Tab` | Cycle to previous window in group (Omarchy key) |
+| `Ctrl+Alt+Tab` | Change active group member (forward) |
+| `Ctrl+Shift+Alt+Tab` | Change active group member (backward) |
+
+## 7. Apps
+
+| Keys | Action | App (NoSignal default) |
+|------|--------|----------------------|
+| `Super+Return` | Terminal | **kitty** |
+| `Super+Shift+Return` | Browser | **chromium** |
+| `Super+Shift+B` | Browser (alias) | **chromium** |
+| `Super+Shift+N` | Text editor | **gnome-text-editor** |
+| `Super+Shift+F` | File manager | **nautilus** |
+| `Super+Alt+E` | File manager (alt) | nemo |
+| `Super+Shift+G` | GitHub Desktop | github-desktop |
+| `Super+I` | Install software (app store) | **Shelly** |
+| `Ctrl+Alt+Escape` | Process/task viewer | qps |
+| `Super+Ctrl+A` | Audio control (Omarchy key) | pavucontrol |
+| `Ctrl+Alt+V` | Audio control (alias) | pavucontrol |
+| `Super+Ctrl+H` | Monitor layout editor & profiles | **hyprmoncfg** (TUI) |
+
+> All app binds use Omarchy's keys. Caelestia's stock app picks
+> (foot / zen-browser / codium / thunar) are **not installed**; NoSignal points
+> these binds at shipped apps via `hypr-vars.conf`.
+
+## 8. Special-workspace toggles
+
+| Keys | Action |
+|------|--------|
+| `Super+Ctrl+T` | System monitor — "Activity" (Omarchy key) |
+| `Ctrl+Shift+Escape` | System monitor (alias) |
+| `Super+Shift+M` | Music (Omarchy key) |
+| `Super+M` | Music player — CLIAmp, floating (default for audio files) |
+| `Super+Shift+D` | Communication (moved from Super+D — that's the dashboard now) |
+| `Super+R` | To-do |
+
+## 9. Screenshots & screen recording
+
+| Keys | Action |
+|------|--------|
+| `Print` | Region capture (crosshair) → clipboard + ~/Pictures/Screenshots |
+| `Shift+Print` | Full screen → clipboard + ~/Pictures/Screenshots |
+| `Super+Shift+S` | Region capture, frozen screen (swappy → ~/Pictures/Screenshots) — becomes **Gaming Mode** after opting in (see §14) |
+| `Super+Shift+Alt+S` | Region capture, live (swappy → ~/Pictures/Screenshots) |
+| `Super+Print` | Color picker — hyprpicker (Omarchy key) |
+| `Super+Shift+C` | Color picker (alias) |
+| `Ctrl+Alt+R` | Record screen (no audio) |
+| `Super+Alt+R` | Record screen **with sound** |
+| `Super+Shift+Alt+R` | Record a region |
+
+## 10. Audio & brightness
+
+| Keys | Action |
+|------|--------|
+| `XF86AudioRaiseVolume` / `LowerVolume` | Volume ±10% (unmutes first) |
+| `XF86AudioMute` | Mute / unmute output |
+| `XF86AudioMicMute` | Mute / unmute microphone |
+| `XF86MonBrightnessUp` / `Down` | Screen brightness up / down |
+
+## 11. Media playback
+
+| Keys | Action |
+|------|--------|
+| `Ctrl+Super+Space` or `XF86AudioPlay`/`Pause` | Play / pause |
+| `Ctrl+Super+Equal` or `XF86AudioNext` | Next track |
+| `Ctrl+Super+Minus` or `XF86AudioPrev` | Previous track |
+| `XF86AudioStop` | Stop |
+
+## 12. Clipboard & emoji
+
+| Keys | Action |
+|------|--------|
+| `Super+C` | **Copy** — universal (terminals → Ctrl+Shift+C, GUI → Ctrl+C) |
+| `Super+V` | **Paste** — universal (terminals → Ctrl+Shift+V, GUI → Ctrl+V) |
+| `Super+Ctrl+V` | Clipboard history (Omarchy key) |
+| `Super+Alt+V` | Clipboard history — delete-entry mode |
+| `Super+Ctrl+E` | Emoji picker (Omarchy key) |
+| `Super+Period` | Emoji picker (alias) |
+| `Ctrl+Shift+Alt+V` | Alternate paste — types last clip (needs ydotool, NOT installed: dead bind) |
+
+## 13. Power
+
+| Keys | Action |
+|------|--------|
+| `Super+Shift+L` | Suspend-then-hibernate |
+
+## 14. Gaming Mode (opt-in)
+
+Not active on a fresh install. Opt in on the installed system with
+`sh ~/deckshift/deckshift.sh`, then
+`sh ~/.local/share/nosignal/deckshift-login/install-deckshift-login.sh`.
+
+`Super+Shift+S` is bound in the **base** and self-guards: it launches Gaming Mode
+only if DeckShift is installed and **does nothing** otherwise. (It replaces
+caelestia's Super+Shift+S screenshot-freeze for everyone — region shots stay on
+Print / Shift+Print / Super+Shift+Alt+S.)
+
+| Keys | Action |
+|------|--------|
+| `Super+Shift+S` | Switch to Gaming Mode (full DeckShift gamescope/Steam session via SDDM restart) **if DeckShift is installed**; does nothing otherwise |
+| `Super+Shift+R` | Exit Gaming Mode back to the desktop — works **inside the gaming session only** (or Steam > Power > Exit to Desktop) |
+
+Cold boots always show the SDDM password greeter; only the desktop↔gaming
+switch itself skips the password (one-shot autologin).
+
+---
+
+## Source map (for the install-system handoff)
+
+All paths below; `~/.config/hypr` → symlink → `~/.local/share/caelestia/hypr`.
+
+| File | Role |
+|------|------|
+| `~/.config/hypr/hyprland.conf` | Top-level; sources everything in order |
+| `~/.config/hypr/hyprland/keybinds.conf` | **The bind definitions** (uses `$kb*` variables) |
+| `~/.config/hypr/variables.conf` | **Default key + app values** (`$kbCloseWindow = Super, Q`, etc.) |
+| `~/.config/caelestia/hypr-vars.conf` | **NoSignal overrides** — app rebinds + flattened styling + **Omarchy `$kb*` remaps** |
+| `~/.config/caelestia/hypr-user.conf` | **NoSignal overrides** — overview (Super+Grave), help binds, **Omarchy unbinds/extra binds**, `kb_layout = gb`, window rules |
+| `~/.local/bin/nosignal-keybinds-gen` | **Generator** — parses this `.md` → display-ready cheatsheet lines (single source of truth) |
+| `~/.local/bin/nosignal-keybinds` | **NoSignal help launcher** — regenerates from this doc each run, shows the fuzzel dmenu |
+| `~/.local/share/nosignal/keybinds.list` | Generated cache (auto-rebuilt; used as fallback if the doc is missing) |
+
+**How the override layering works** (load order matters — later wins):
+`variables.conf` sets stock defaults → `hyprland.conf` sources `hypr-vars.conf`
+*before* `keybinds.conf` (so `$kb*` remaps take effect) and `hypr-user.conf`
+*after everything* (so its `unbind`/`bind` lines win).
+
+**NoSignal deltas vs. stock Caelestia:**
+- **Key layout remapped to Omarchy defaults** — full mapping table
+  and deliberate deviations in `omarchy-keys/README.md`.
+- Apps: terminal `foot→kitty`, browser `zen-browser→chromium`,
+  editor `codium→gnome-text-editor`, file manager `thunar→nautilus`.
+- Added bind: `Super+Grave` → overview sidecar (`exec-once = qs -c overview -d`).
+- Added bind: `Super+K` (+ `Super+/`, `Super+F1`) → searchable keybinding
+  cheatsheet, **generated from this document** so the two never drift.
+- Added bind: `Super+I` → Shelly software store (repos + AUR + Flathub); yay
+  and flatpak/Flathub added underneath (see `software-install/`).
+- Added binds: `Super+C` / `Super+V` universal copy/paste (clipboard
+  history → `Super+Ctrl+V`); `Print` region screenshot;
+  `Super+D` dashboard (communication → `Super+Shift+D`).
+- Keyboard layout forced to `gb` (UK).
+- Glassmorphism off: blur/shadows disabled, opacity 1.0, smaller rounding/gaps.
+- Keys left unbound by the Omarchy remap: `Super+Q`, `Super+E`,
+  `Super+U`, `Super+Comma`, `Super+L`, `Super+Alt+Space`.
+
+### Rebuild: this whole component ships in Downloads
+
+Because the live system gets wiped and only Downloads is kept, the entire
+feature is packaged there and reinstalled with one command per component:
+
+| File in Downloads | Installs to |
+|-------------------|-------------|
+| `nosignal-keybinds-gen` | `~/.local/bin/` (the markdown→list generator) |
+| `nosignal-keybinds` | `~/.local/bin/` (the cheatsheet launcher) |
+| `NoSignal-keybindings.md` (this file) | `~/.local/share/nosignal/` (canonical source of truth) |
+| `hyprland-keybinds-help.conf` | appended to `~/.config/caelestia/hypr-user.conf` (Super+/ + F1 binds) |
+| `install-keybinds-help.sh` | the installer — run it after rebuild |
+| `omarchy-keys/` | the Omarchy remap (vars + user conf + installer) |
+
+```sh
+sh ~/Downloads/install-keybinds-help.sh
+sh ~/Downloads/omarchy-keys/install-omarchy-keys.sh
+```
+
+Installers are idempotent (safe to re-run) and reload Hyprland if it's
+running. **No PATH dependency:** binds use the absolute path
+`~/.local/bin/nosignal-keybinds`, and that script locates its generator next to
+itself — so it works even if `~/.local/bin` isn't on the session `PATH`.
+No keymap data lives in the scripts; editing this doc is all that's needed to
+change the on-screen help. Deps: `awk`, `fuzzel`, optional `wl-copy`.
+
+**To change a binding:** edit `keybinds.conf` for new actions, or redefine the
+matching `$kb*` variable. Put NoSignal-specific changes in `hypr-user.conf` /
+`hypr-vars.conf` so they survive a Caelestia update (the `hypr` symlink target
+gets overwritten on upgrade; the two override files do not).
+
+---
+*Keybindings follow Omarchy defaults; the Super+K cheatsheet is generated from this file.*

os updates/ONBOX-AI-NOTES.md

@@ -0,0 +1,128 @@
+# NoSignal — notes for an AI agent working on this machine
+
+You are on **NoSignal**: Arch Linux + Hyprland + the Caelestia shell (Quickshell)
++ SDDM (themed greeter). A "NoSignal layer" of config and tooling sits ON TOP of
+stock Caelestia. Read this before changing desktop/system config — your job is to
+help the user manage their machine safely.
+
+## Config layout — what is safe to edit
+
+- `~/.config/caelestia/` — **the NoSignal override layer** (edit here):
+  - `hypr-user.conf` — user binds/rules/exec-once; sourced LAST, so it wins.
+    This is the right place for new keybinds. `unbind =` works here.
+  - `hypr-vars.conf` — `$variables` ($terminal, $kb*, gaps, blur…); sourced
+    BEFORE keybinds.conf consumes them.
+  - `shell.json`, `shell-tokens.json` — Caelestia shell appearance/behaviour.
+  - Deleting any of these files restores stock Caelestia behaviour.
+- `~/.config/hypr` is a **SYMLINK** into `~/.local/share/caelestia` (the
+  dotfiles clone). Several other `~/.config` entries (foot, fish, fastfetch,
+  uwsm) are symlinks into it too. **Never replace these symlinks with copies**
+  and never edit the clone's hyprland.conf directly — use hypr-user.conf.
+- `~/.config/hypr/scripts/wsaction.fish` and `configs.fish` are **bash** ports
+  kept under their original .fish names (the stock config calls those paths).
+  Keep the names and the bash shebang.
+
+## Updates
+
+- `~/.local/share/nosignal/` — the on-system layer: component sources, the
+  keybindings doc, and `nosignal-update/` (the update command + its migrations).
+- **`nosignal-update`** = the system update command: snapper snapshot →
+  `yay -Syu` → run any NEW migrations. Applied migrations are tracked in
+  `~/.local/state/nosignal/applied` — do not re-run or edit by hand.
+
+## Keybindings
+
+- `Super+K` (aliases `Super+/`, `Super+F1`) = searchable fuzzel cheatsheet.
+- **Source of truth: `~/.local/share/nosignal/NoSignal-keybindings.md`** — the
+  cheatsheet is GENERATED from it (`nosignal-keybinds-gen`). If you add a bind
+  in hypr-user.conf, document it in that file too.
+- Layout follows **Omarchy defaults**: Super+Return terminal (kitty, bash),
+  Super+W close, Super+Space launcher, Super+Tab next workspace,
+  **Super+Grave = workspace overview**, Super+I Shelly store,
+  Super+Ctrl+H monitor editor, Super+Shift+number move-to-workspace
+  (bound by KEYCODE — GB layout).
+- **Super+C / Super+V = universal copy/paste** (class-aware sendshortcut;
+  clipboard HISTORY is Super+Ctrl+V). **Print = region screenshot** →
+  clipboard + ~/Pictures/Screenshots (Shift+Print full). **Super+D =
+  dashboard/calendar** (communication workspace → Super+Shift+D).
+  **Super+M = CLIAmp**, the default music player (floating TUI; audio files
+  open in it via `~/.config/mimeapps.list`). The shell's music/MPRIS panel
+  is **Super+Shift+M**.
+
+## Shell / desktop architecture gotchas
+
+- The Caelestia shell runs from `/etc/xdg/quickshell/caelestia`. NoSignal
+  patches THREE things there, each re-applied by its own pacman hook after
+  every caelestia-shell upgrade: the Settings → System → **Updates** page
+  (`PageCompRegistry.qml` + `pages/UpdatesPage.qml`), the Settings →
+  **Additions** page (same registry + `pages/AdditionsPage.qml` +
+  Plugins→Additions relabel in `PageRegistry.qml`; backend =
+  `nosignal-additions` + `additions.json` in the layer tree), and the Wi-Fi
+  wrong-password recovery in `utils/NetworkConnection.qml`.
+  **Do NOT create `~/.config/quickshell/caelestia`** — a user copy shadows
+  /etc/xdg and silently drops the patches (and future ones).
+  If the shell ever fails at login (background but no bar): reproduce with
+  `qs -c caelestia -n` from a TTY (`WAYLAND_DISPLAY=wayland-1`) to get the QML
+  error chain; suspect the page patches first.
+- The workspace **overview is a separate Quickshell instance**
+  (`~/.config/quickshell/overview`, `qs -c overview -d`, IPC-toggled by
+  Super+Grave). It is independent of the main shell.
+- The update-status timer (`nosignal-update-check.timer`, user),
+  `hyprmoncfgd` (monitor hotplug profiles, user) and
+  `hyprmoncfgd-rescan.path` (watches `~/.config/hyprmoncfg/profiles/` and
+  bounces the daemon so plain profile saves apply live) are enabled systemd
+  USER units. Status: `systemctl --user status <unit>`.
+
+## Monitors
+
+- Use **hyprmoncfg** (`Super+Ctrl+H`, TUI) — it writes
+  `~/.config/hypr/monitors.conf` (+ workspaces.conf), which hypr-user.conf
+  sources. Keep those `source =` lines; hyprmoncfg refuses to write otherwise.
+- Both the TUI bind and the `hyprmoncfgd` daemon run with
+  `--hypr-config ~/.config/caelestia/hypr-user.conf --monitors-conf
+  ~/.config/hypr/monitors.conf` (hyprmoncfg doesn't follow nested `source =`
+  includes). Keep the flags; the daemon's drop-in lives at
+  `~/.config/systemd/user/hyprmoncfgd.service.d/override.conf`.
+
+## Login / display manager / gaming
+
+- **SDDM** is the display manager. Config drop-ins in `/etc/sddm.conf.d/`:
+  `10-nosignal.conf` (X11 greeter, uwsm session notes) + `20-sddm-theme.conf`
+  (themed greeter). The desktop session MUST stay `hyprland-uwsm.desktop`
+  (uwsm-managed) — plain hyprland.desktop loses caelestia's session env.
+- The greeter theme (`/usr/share/sddm/themes/caelestia`) mirrors the desktop
+  scheme. After changing wallpaper, run **`sudo sddm-theme-sync`** to update
+  the login screen (it does not auto-follow).
+- **Gaming Mode is OPT-IN**: run `sh ~/deckshift/deckshift.sh`, then
+  `sh ~/.local/share/nosignal/deckshift-login/install-deckshift-login.sh`
+  (re-run the fix after any deckshift.sh re-run). Then Super+Shift+S enters
+  the full gamescope/Steam session; Super+Shift+R (inside it) returns. Cold
+  boots always show the password greeter (one-shot autologin). `[multilib]`
+  is enabled and `omarchy-pkg-add` & friends are shims in `~/.local/bin`.
+
+## Packages / system
+
+- `yay` for AUR; **Shelly** (`shelly-ui`, Super+I) is the GUI store
+  (repos + AUR + Flathub). Flathub remote is preconfigured. Settings →
+  **Additions** installs curated optional software (DeckShift, Spotify,
+  Once, Obsidian, OBS, Claude Code, Codex, opencode) from official sources
+  only — extend via `additions.json` in the layer tree, no code changes.
+- The firewall is **ufw**, enabled with Omarchy-style defaults — it is easy
+  to miss because nothing advertises it: `sudo ufw status`.
+- The `fish` package is REQUIRED by caelestia-meta — do not remove it, even
+  though bash is the login/terminal shell.
+- Btrfs + snapper: every pacman transaction snapshots (snap-pac); snapshots
+  are BOOTABLE from the Limine menu (limine-snapper-sync, UKI at
+  /boot/EFI/Linux/nosignal_linux.efi). Worst case: reboot → pick a snapshot.
+- `[omarchy]` repo in pacman.conf provides prebuilt limine-snapper tools.
+- omarchy-send is installed (LAN file transfer; receive dir `~/Omarchy-Send`,
+  TUI in launcher, CLI: `omarchy-send -to <alias> <files>`). Its config
+  contains a private key — never copy/share `~/.config/omarchy-send/`.
+
+## Theme
+
+- Wallpapers: `~/Pictures/Wallpapers/nosignal/` (the OS art set; default
+  foam-sea.png). The colour scheme is Caelestia's **dynamic** Material scheme,
+  generated FROM the current wallpaper — change wallpaper via the Caelestia
+  UI or `caelestia wallpaper -f <file>` and the palette follows. The SDDM
+  greeter does NOT auto-follow: run `sudo sddm-theme-sync` after.

os updates/additions-extra/README.md

@@ -0,0 +1,34 @@
+# additions-extra (Settings → Additions: 7 new items)
+
+Merges seven items into `additions.json` (8 → 15 items).
+
+Adds seven curated optional apps to Settings → Additions. All follow the
+manifest policy (**official repos `[extra]`/`[omarchy]`, or official upstream
+installers — no AUR, no Flatpak**) and are **GPU-agnostic** in wording and
+behaviour (so they're correct on AMD boxes too).
+
+| id | name | source | notes |
+|----|------|--------|-------|
+| `ollama` | Ollama | `[extra]` | install picks `ollama-cuda` (NVIDIA) / `ollama-rocm` (AMD) / `ollama` (CPU) by detecting the GPU vendor via `lspci` — stays agnostic |
+| `lmstudio` | LM Studio | `[omarchy]` | `lmstudio-bin` (Provides/Conflicts `lmstudio`) |
+| `dropbox` | Dropbox | `[omarchy]` | daemon + cli + nautilus-dropbox; enables the user service; links account on first start |
+| `tailscale` | Tailscale | `[extra]` | installs + enables `tailscaled`; user runs `sudo tailscale up` |
+| `pinta` | Pinta | `[omarchy]` | Paint.NET-style image editor |
+| `kdenlive` | Kdenlive | `[extra]` | video editor; hardware-accelerated export via ffmpeg |
+| `pi` | Pi Coding Agent | `curl pi.dev/install.sh` | AI coding-agent CLI, same family as claude-code/codex/opencode |
+
+## Files
+- `additions.json` — the **full merged manifest** (15 items) for the builder to
+  ship as the canonical Settings→Additions manifest.
+- `merge-additions.sh` — idempotent merge of the 7 new items (by id) into an
+  already-installed system's manifest (skips ones already present). No root.
+- `migrations/1781449200-additions-extra.sh` — delegates to it.
+
+## Builder integration
+Replace the layer's `additions-installer/additions.json` with the bundled
+15-item file (or cherry-pick the 7 new entries). The merge script covers
+already-installed machines on `nosignal-update`.
+
+## Icon note
+`kdenlive` uses `movie_edit` and `pi` uses `robot_2` — newer Material Symbols.
+If the shipped icon font is older, fall back to `movie` and `smart_toy`.

os updates/additions-extra/additions.json

@@ -0,0 +1,125 @@
+{
+  "_comment": "NoSignal additions manifest — drives Settings → Additions. Each item: id (slug), name, desc (one line, shown until installed), icon (Material Symbol), check (sh, exit 0 = installed), install (sh, runs in a visible floating terminal — interactive sudo is fine). Sources policy: official pacman repos ([extra]/[omarchy]) or official upstream installers/git only — no AUR, no Flatpak.",
+  "items": [
+    {
+      "id": "deckshift",
+      "name": "DeckShift Gaming Mode",
+      "desc": "Steam Big Picture gamescope session (Super+Shift+S)",
+      "icon": "sports_esports",
+      "check": "test -x /usr/local/bin/switch-to-gaming",
+      "install": "set -e; [ -d \"$HOME/deckshift/.git\" ] || git clone https://git.no-signal.uk/nosignal/deckshift.git \"$HOME/deckshift\"; cd \"$HOME/deckshift\"; chmod +x deckshift.sh; ./deckshift.sh; sh \"$HOME/.local/share/nosignal/deckshift-login/install-deckshift-login.sh\""
+    },
+    {
+      "id": "spotify",
+      "name": "Spotify",
+      "desc": "Music streaming client",
+      "icon": "music_note",
+      "check": "pacman -Q spotify",
+      "install": "sudo pacman -S --needed --noconfirm spotify"
+    },
+    {
+      "id": "once",
+      "name": "Once",
+      "desc": "Basecamp self-hosted web app manager",
+      "icon": "deployed_code",
+      "check": "pacman -Q once-bin",
+      "install": "sudo pacman -S --needed --noconfirm once-bin"
+    },
+    {
+      "id": "obsidian",
+      "name": "Obsidian",
+      "desc": "Knowledge base and Markdown notes",
+      "icon": "edit_note",
+      "check": "pacman -Q obsidian",
+      "install": "sudo pacman -S --needed --noconfirm obsidian"
+    },
+    {
+      "id": "obs",
+      "name": "OBS Studio",
+      "desc": "Screen recording and streaming (+ hardware encoders)",
+      "icon": "videocam",
+      "check": "sh \"$HOME/.local/share/nosignal/additions-installer/obs-extras.sh\" check",
+      "install": "sh \"$HOME/.local/share/nosignal/additions-installer/obs-extras.sh\" install"
+    },
+    {
+      "id": "claude-code",
+      "name": "Claude Code",
+      "desc": "Anthropic terminal coding agent",
+      "icon": "smart_toy",
+      "check": "command -v claude",
+      "install": "curl -fsSL https://claude.ai/install.sh | bash"
+    },
+    {
+      "id": "codex",
+      "name": "Codex CLI",
+      "desc": "OpenAI terminal coding agent",
+      "icon": "code",
+      "check": "command -v codex",
+      "install": "curl -fsSL https://chatgpt.com/codex/install.sh | sh"
+    },
+    {
+      "id": "opencode",
+      "name": "opencode",
+      "desc": "Open-source terminal coding agent",
+      "icon": "data_object",
+      "check": "command -v opencode",
+      "install": "curl -fsSL https://opencode.ai/install | bash"
+    },
+    {
+      "id": "ollama",
+      "name": "Ollama",
+      "desc": "Run LLMs locally (GPU-accelerated)",
+      "icon": "neurology",
+      "check": "pacman -Q ollama",
+      "install": "gpu=$(lspci -nn 2>/dev/null | grep -iE 'VGA|3D|Display'); if echo \"$gpu\" | grep -qi '10de'; then pkg=ollama-cuda; elif echo \"$gpu\" | grep -qi '1002'; then pkg=ollama-rocm; else pkg=ollama; fi; echo \"Installing $pkg\"; sudo pacman -S --needed --noconfirm \"$pkg\""
+    },
+    {
+      "id": "lmstudio",
+      "name": "LM Studio",
+      "desc": "Desktop app to run LLMs locally (GPU-accelerated)",
+      "icon": "psychology",
+      "check": "pacman -Q lmstudio-bin || pacman -Q lmstudio",
+      "install": "sudo pacman -S --needed --noconfirm lmstudio-bin"
+    },
+    {
+      "id": "dropbox",
+      "name": "Dropbox",
+      "desc": "Cloud file sync and sharing",
+      "icon": "cloud_sync",
+      "check": "pacman -Q dropbox",
+      "install": "sudo pacman -S --needed --noconfirm dropbox dropbox-cli nautilus-dropbox; systemctl --user enable --now dropbox 2>/dev/null || true; echo 'Dropbox installed — it will open a browser to link your account on first start.'"
+    },
+    {
+      "id": "tailscale",
+      "name": "Tailscale",
+      "desc": "Mesh VPN to connect your devices",
+      "icon": "vpn_lock",
+      "check": "pacman -Q tailscale",
+      "install": "sudo pacman -S --needed --noconfirm tailscale; sudo systemctl enable --now tailscaled; echo 'Tailscale installed. Connect with: sudo tailscale up'"
+    },
+    {
+      "id": "pinta",
+      "name": "Pinta",
+      "desc": "Simple image editor (Paint.NET-style)",
+      "icon": "brush",
+      "check": "pacman -Q pinta",
+      "install": "sudo pacman -S --needed --noconfirm pinta"
+    },
+    {
+      "id": "kdenlive",
+      "name": "Kdenlive",
+      "desc": "Video editor (hardware-accelerated export)",
+      "icon": "movie_edit",
+      "check": "pacman -Q kdenlive",
+      "install": "sudo pacman -S --needed --noconfirm kdenlive"
+    },
+    {
+      "id": "pi",
+      "name": "Pi Coding Agent",
+      "desc": "Interactive AI coding agent (multi-provider)",
+      "icon": "robot_2",
+      "check": "command -v pi",
+      "install": "curl -fsSL https://pi.dev/install.sh | sh"
+    }
+  ]
+}

os updates/additions-extra/merge-additions.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+# merge-additions.sh — idempotent. User-level (no root).
+#
+# Adds this component's additions.json items (by id) into the installed
+# Settings -> Additions manifest, skipping ones already present. For the ISO the
+# builder should instead ship this additions.json as the canonical manifest.
+set -eu
+HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+LIVE="$HERE/../additions-installer/additions.json"
+SRC="$HERE/additions.json"
+[ -f "$LIVE" ] || { echo "live additions.json not found at $LIVE" >&2; exit 1; }
+[ -f "$SRC" ]  || { echo "component additions.json missing" >&2; exit 1; }
+cp -a "$LIVE" "$LIVE.bak.$(date +%Y%m%d%H%M%S)" 2>/dev/null || true
+python3 - "$LIVE" "$SRC" <<'PY'
+import json,sys
+live_p,src_p=sys.argv[1:3]
+live=json.load(open(live_p)); src=json.load(open(src_p))
+have={i["id"] for i in live["items"]}
+added=[i for i in src["items"] if i["id"] not in have]
+live["items"].extend(added)
+json.dump(live,open(live_p,"w"),indent=2,ensure_ascii=False); open(live_p,"a").write("\n")
+print("merged:", ", ".join(i["id"] for i in added) if added else "(none new)")
+print("total items:", len(live["items"]))
+PY
+echo "additions-extra: ok"

os updates/additions-installer/AdditionsPage.qml

@@ -0,0 +1,120 @@
+pragma ComponentBehavior: Bound
+
+import QtQuick
+import QtQuick.Layouts
+import Quickshell.Io
+import Caelestia.Config
+import qs.components
+import qs.services
+import qs.modules.nexus.common
+
+// NoSignal: the Additions settings page (replaces the upstream Plugins
+// placeholder). Optional software installed on demand from official sources
+// (pacman repos / upstream installers — no AUR, no Flatpak). Items come from
+// the additions.json manifest via the status cache written by
+// nosignal-additions; Install runs in a visible floating terminal so
+// git/sudo/pacman output and prompts stay in front of the user.
+PageBase {
+    id: root
+
+    title: qsTr("Additions")
+
+    property var status: ({})
+    readonly property var items: status.items || []
+
+    ColumnLayout {
+        anchors.horizontalCenter: parent.horizontalCenter
+        anchors.top: parent.top
+        width: root.cappedWidth
+        spacing: Tokens.spacing.extraSmall / 2
+
+        // The Process objects live INSIDE the layout (its `data` accepts
+        // non-visual objects) — PageBase's default property is a single
+        // `Item`, so declaring them at page level kills the whole shell.
+        // Same pattern as UpdatesPage / the upstream AboutPage.
+
+        // Read the cached status (instant).
+        Process {
+            id: readProc
+
+            running: true
+            command: ["sh", "-c", "cat \"${XDG_STATE_HOME:-$HOME/.local/state}/nosignal/additions-status.json\" 2>/dev/null"]
+            stdout: StdioCollector {
+                onStreamFinished: {
+                    try {
+                        root.status = JSON.parse(text);
+                    } catch (e) {
+                        root.status = {};
+                    }
+                }
+            }
+        }
+
+        // Refresh the cache on demand (re-runs every item's check).
+        Process {
+            id: checkProc
+
+            command: ["sh", "-c", "\"$HOME/.local/bin/nosignal-additions\" status >/dev/null 2>&1"]
+            onExited: readProc.running = true
+        }
+
+        // Run an installer in a visible floating terminal.
+        Process {
+            id: installProc
+
+            property string addId: ""
+
+            command: ["kitty", "--class", "TUI.float", "-e", "sh", "-c", "\"$HOME/.local/bin/nosignal-additions\" install " + addId + "; printf '\\nPress Enter to close...'; read _"]
+            onExited: readProc.running = true
+        }
+
+        SectionHeader {
+            text: qsTr("Optional software")
+        }
+
+        Repeater {
+            model: root.items
+
+            NavRow {
+                required property var modelData
+                required property int index
+
+                first: index === 0
+                last: index === root.items.length - 1
+                icon: modelData.icon || "extension"
+                label: modelData.name
+                status: modelData.installed ? qsTr("Installed") : modelData.desc
+                onClicked: {
+                    if (!modelData.installed && !installProc.running) {
+                        installProc.addId = modelData.id;
+                        installProc.running = true;
+                    }
+                }
+            }
+        }
+
+        InfoRow {
+            visible: root.items.length === 0
+            first: true
+            last: true
+            label: qsTr("No additions manifest")
+            value: "—"
+        }
+
+        SectionHeader {
+            text: qsTr("Actions")
+        }
+
+        NavRow {
+            first: true
+            last: true
+            icon: "refresh"
+            label: qsTr("Re-check installed state")
+            status: installProc.running ? qsTr("Install running in terminal…") : (checkProc.running ? qsTr("Checking…") : qsTr("Refreshes the list above"))
+            onClicked: {
+                if (!checkProc.running)
+                    checkProc.running = true;
+            }
+        }
+    }
+}

os updates/additions-installer/README.md

@@ -0,0 +1,91 @@
+# additions-installer — Settings → Additions (optional software on demand)
+
+Turns the Settings app's placeholder **Plugins** section
+into an **Additions** page: a curated list of optional software with
+one-click installs.
+
+## Sources policy
+
+**No AUR. No Flatpak.** Official pacman repos or official upstream
+installers/git only:
+
+| Item | Source |
+|------|--------|
+| DeckShift Gaming Mode | official git — `https://git.no-signal.uk/nosignal/deckshift.git` → `deckshift.sh` → **deckshift-login installer** (the one-shot-autologin fix, always run after deckshift.sh) |
+| Spotify | `[omarchy]` pacman repo (proprietary — no upstream git exists) |
+| Once (Basecamp) | `[omarchy]` pacman repo (`once-bin`) |
+| Obsidian | Arch `[extra]` |
+| OBS Studio | Arch `[extra]` (`obs-studio`) + **GPU-detected encoder runtimes** via `obs-extras.sh` (see below) |
+| Claude Code | official installer — `curl -fsSL https://claude.ai/install.sh \| bash` |
+| Codex CLI | official installer — `curl -fsSL https://chatgpt.com/codex/install.sh \| sh` |
+| opencode | official installer — `curl -fsSL https://opencode.ai/install \| bash` |
+
+## OBS hardware encoders (obs-extras.sh)
+
+First-round testing found `obs-studio` alone ships only the x264
+software encoder path. The ISO lands on arbitrary GPUs (AMD / Intel /
+NVIDIA, any mix), so the OBS entry delegates check AND install to
+**`obs-extras.sh`**, which detects GPUs via `lspci` per machine:
+
+- **AMD** — VAAPI (H.264/HEVC/AV1) ships inside mesa: nothing to add.
+- **Intel** — installs `intel-media-driver` + `vpl-gpu-rt` (QSV).
+- **NVIDIA** — NVENC comes with the proprietary driver; deliberately
+  not auto-installed (driver branch is a system decision — see
+  gaming-enablement); prints a pointer if the driver is absent.
+
+Because the *check* also requires the detected runtimes, an OBS
+installed without them shows as not-installed — clicking Install
+completes the set idempotently.
+
+## How it works (same mechanism as the Updates page)
+
+- **`additions.json`** — the manifest, single source of truth. Per item:
+  `id`, `name`, `desc`, `icon` (Material Symbol), `check` (sh, exit 0 =
+  installed), `install` (sh). Edit this file to add/remove items — no
+  code changes needed.
+- **`nosignal-additions`** (`~/.local/bin`) — `status` re-runs every check
+  and writes `~/.local/state/nosignal/additions-status.json`;
+  `install <id>` runs the item's installer then re-statuses;` list`.
+- **`AdditionsPage.qml`** — reads the status cache; each item is a row
+  (Installed ✓ or description + click-to-install). Installs run in a
+  visible floating terminal (`kitty --class TUI.float`) so git/sudo/
+  pacman prompts stay in front of the user. Modeled line-for-line on
+  UpdatesPage (Process objects inside the layout — see the comment).
+- **`patch-additions-page.sh`** — root-run, idempotent: installs the
+  page QML, swaps the *remaining* System `PlaceholderComp` (the Plugins
+  stub) for the page, and relabels the menu entry
+  Plugins → Additions / "Install optional software".
+  **Ordering: requires the Updates-page patch first** — before it,
+  the first placeholder is the Updates stub (guarded: warns and skips).
+  Backups at `*.pre-nosignal-additions`; warns and degrades gracefully on
+  upstream drift.
+- **pacman hook** (`nosignal-additions-page.hook`) re-applies after every
+  caelestia-shell upgrade.
+
+## Packaging
+
+- Ship the component in the layer tree + COPY-list; migration
+  `1781420400-additions-installer.sh` (sorts after the cliamp-music migration; add to the
+  baked `applied` list).
+- The patch can be baked at image build (after the Updates-page patch).
+- Do NOT pre-install any of the additions — the page is the opt-in.
+
+## Version pins / drift
+
+- Registry patch pinned against caelestia-shell **2.0.2** (same pin as
+  the Updates page; both patch scripts warn-and-degrade on drift).
+- The three `curl | sh` installers and the DeckShift git URL are
+  upstream-controlled endpoints; if one moves, only `additions.json`
+  needs editing.
+
+## Test
+
+1. Settings → System shows **Additions** (not "Plugins"); page lists 8
+   items with sensible installed/not-installed state.
+2. Install something small (e.g. Obsidian) → floating terminal, sudo
+   prompt, pacman runs → row flips to "Installed" after the terminal
+   closes.
+3. "Re-check installed state" refreshes after installing/removing
+   something from a terminal.
+4. DeckShift entry: full chain (clone → deckshift.sh → deckshift-login
+   fix), then the Gaming Mode checklist items apply (Super+Shift+S etc.).

os updates/additions-installer/additions.json

@@ -0,0 +1,125 @@
+{
+  "_comment": "NoSignal additions manifest — drives Settings → Additions. Each item: id (slug), name, desc (one line, shown until installed), icon (Material Symbol), check (sh, exit 0 = installed), install (sh, runs in a visible floating terminal — interactive sudo is fine). Sources policy: official pacman repos ([extra]/[omarchy]) or official upstream installers/git only — no AUR, no Flatpak.",
+  "items": [
+    {
+      "id": "deckshift",
+      "name": "DeckShift Gaming Mode",
+      "desc": "Steam Big Picture gamescope session (Super+Shift+S)",
+      "icon": "sports_esports",
+      "check": "test -x /usr/local/bin/switch-to-gaming",
+      "install": "set -e; [ -d \"$HOME/deckshift/.git\" ] || git clone https://git.no-signal.uk/nosignal/deckshift.git \"$HOME/deckshift\"; cd \"$HOME/deckshift\"; chmod +x deckshift.sh; ./deckshift.sh; sh \"$HOME/.local/share/nosignal/deckshift-login/install-deckshift-login.sh\""
+    },
+    {
+      "id": "spotify",
+      "name": "Spotify",
+      "desc": "Music streaming client",
+      "icon": "music_note",
+      "check": "pacman -Q spotify",
+      "install": "sudo pacman -S --needed --noconfirm spotify"
+    },
+    {
+      "id": "once",
+      "name": "Once",
+      "desc": "Basecamp self-hosted web app manager (installs + starts Docker)",
+      "icon": "deployed_code",
+      "check": "pacman -Q once-bin",
+      "install": "sudo pacman -S --needed --noconfirm once-bin docker; sudo systemctl enable --now docker.service; sudo usermod -aG docker \"$USER\"; echo 'Once + Docker installed and Docker is running. Log out and back in (or run: newgrp docker) so docker works without sudo.'"
+    },
+    {
+      "id": "obsidian",
+      "name": "Obsidian",
+      "desc": "Knowledge base and Markdown notes",
+      "icon": "edit_note",
+      "check": "pacman -Q obsidian",
+      "install": "sudo pacman -S --needed --noconfirm obsidian"
+    },
+    {
+      "id": "obs",
+      "name": "OBS Studio",
+      "desc": "Screen recording and streaming (+ hardware encoders)",
+      "icon": "videocam",
+      "check": "sh \"$HOME/.local/share/nosignal/additions-installer/obs-extras.sh\" check",
+      "install": "sh \"$HOME/.local/share/nosignal/additions-installer/obs-extras.sh\" install"
+    },
+    {
+      "id": "claude-code",
+      "name": "Claude Code",
+      "desc": "Anthropic terminal coding agent",
+      "icon": "smart_toy",
+      "check": "command -v claude",
+      "install": "curl -fsSL https://claude.ai/install.sh | bash"
+    },
+    {
+      "id": "codex",
+      "name": "Codex CLI",
+      "desc": "OpenAI terminal coding agent",
+      "icon": "code",
+      "check": "command -v codex",
+      "install": "curl -fsSL https://chatgpt.com/codex/install.sh | sh"
+    },
+    {
+      "id": "opencode",
+      "name": "opencode",
+      "desc": "Open-source terminal coding agent",
+      "icon": "data_object",
+      "check": "command -v opencode",
+      "install": "curl -fsSL https://opencode.ai/install | bash"
+    },
+    {
+      "id": "ollama",
+      "name": "Ollama",
+      "desc": "Run LLMs locally (GPU-accelerated)",
+      "icon": "neurology",
+      "check": "pacman -Q ollama",
+      "install": "gpu=$(lspci -nn 2>/dev/null | grep -iE 'VGA|3D|Display'); if echo \"$gpu\" | grep -qi '10de'; then pkg=ollama-cuda; elif echo \"$gpu\" | grep -qi '1002'; then pkg=ollama-rocm; else pkg=ollama; fi; echo \"Installing $pkg\"; sudo pacman -S --needed --noconfirm \"$pkg\""
+    },
+    {
+      "id": "lmstudio",
+      "name": "LM Studio",
+      "desc": "Desktop app to run LLMs locally (GPU-accelerated)",
+      "icon": "psychology",
+      "check": "pacman -Q lmstudio-bin || pacman -Q lmstudio",
+      "install": "sudo pacman -S --needed --noconfirm lmstudio-bin"
+    },
+    {
+      "id": "dropbox",
+      "name": "Dropbox",
+      "desc": "Cloud file sync and sharing",
+      "icon": "cloud_sync",
+      "check": "pacman -Q dropbox",
+      "install": "sudo pacman -S --needed --noconfirm dropbox dropbox-cli nautilus-dropbox; systemctl --user enable --now dropbox 2>/dev/null || true; echo 'Dropbox installed — it will open a browser to link your account on first start.'"
+    },
+    {
+      "id": "tailscale",
+      "name": "Tailscale",
+      "desc": "Mesh VPN to connect your devices",
+      "icon": "vpn_lock",
+      "check": "pacman -Q tailscale",
+      "install": "sudo pacman -S --needed --noconfirm tailscale; sudo systemctl enable --now tailscaled; echo 'Tailscale installed. Connect with: sudo tailscale up'"
+    },
+    {
+      "id": "pinta",
+      "name": "Pinta",
+      "desc": "Simple image editor (Paint.NET-style)",
+      "icon": "brush",
+      "check": "pacman -Q pinta",
+      "install": "sudo pacman -S --needed --noconfirm pinta"
+    },
+    {
+      "id": "kdenlive",
+      "name": "Kdenlive",
+      "desc": "Video editor (hardware-accelerated export)",
+      "icon": "movie_edit",
+      "check": "pacman -Q kdenlive",
+      "install": "sudo pacman -S --needed --noconfirm kdenlive"
+    },
+    {
+      "id": "pi",
+      "name": "Pi Coding Agent",
+      "desc": "Interactive AI coding agent (multi-provider)",
+      "icon": "robot_2",
+      "check": "command -v pi",
+      "install": "curl -fsSL https://pi.dev/install.sh | sh"
+    }
+  ]
+}

os updates/additions-installer/install-additions-installer.sh

@@ -0,0 +1,51 @@
+#!/bin/sh
+# install-additions-installer.sh — Settings → Additions page: install
+# optional software on demand from official sources (no AUR, no Flatpak).
+#
+#   - nosignal-additions        -> ~/.local/bin (status cache + installer runner)
+#   - additions.json          -> stable on-system copy (the manifest)
+#   - AdditionsPage.qml       -> patched into caelestia-shell (sudo)
+#   - pacman hook             -> re-applies the patch after shell upgrades
+#
+# Safe to re-run (idempotent). Needs sudo for the QML patch + hook.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+BIN="$HOME/.local/bin"
+SHARE="$HOME/.local/share/nosignal/additions-installer"
+
+# 1. Backend + manifest.
+mkdir -p "$BIN" "$SHARE"
+install -m 0755 "$SRC/nosignal-additions" "$BIN/nosignal-additions"
+install -m 0644 "$SRC/additions.json" "$SHARE/additions.json"
+install -m 0755 "$SRC/obs-extras.sh" "$SHARE/obs-extras.sh"
+
+# 2. Stable on-system copies for the pacman hook to point at.
+install -m 0644 "$SRC/AdditionsPage.qml" "$SHARE/AdditionsPage.qml"
+install -m 0755 "$SRC/patch-additions-page.sh" "$SHARE/patch-additions-page.sh"
+
+# 3. Apply the QML patch now.
+sudo sh "$SHARE/patch-additions-page.sh"
+
+# 4. Pacman hook: caelestia-shell upgrades revert both registries — re-patch.
+HOOK=/etc/pacman.d/hooks/nosignal-additions-page.hook
+sudo mkdir -p /etc/pacman.d/hooks
+sudo tee "$HOOK" > /dev/null <<EOF
+[Trigger]
+Operation = Install
+Operation = Upgrade
+Type = Package
+Target = nosignal-shell
+Target = caelestia-shell
+
+[Action]
+Description = Re-applying NoSignal Additions settings page...
+When = PostTransaction
+Exec = /bin/sh $SHARE/patch-additions-page.sh
+EOF
+echo ":: pacman hook installed -> $HOOK"
+
+# 5. Seed the status cache so the page has data on first open.
+"$BIN/nosignal-additions" status >/dev/null 2>&1 || true
+
+echo "Done. Restart the shell (Ctrl+Super+Alt+R) to see Settings -> Additions."

os updates/additions-installer/nosignal-additions

@@ -0,0 +1,58 @@
+#!/bin/sh
+# nosignal-additions — backend for Settings → Additions (optional software).
+# The manifest (additions.json, next to this component's on-system copy) is
+# the single source of truth: id/name/desc/icon per item, a `check` command
+# (exit 0 = installed) and an `install` command (run in a visible terminal).
+#
+#   nosignal-additions status        rewrite the status cache (JSON)
+#   nosignal-additions list          list manifest items (id<TAB>name)
+#   nosignal-additions install <id>  run the item's installer, then re-status
+#
+# Sources policy: official pacman repos or official upstream installers/git
+# only — no AUR, no Flatpak.
+set -eu
+
+SHARE="$HOME/.local/share/nosignal/additions-installer"
+MANIFEST="${NOSIGNAL_ADDITIONS_MANIFEST:-$SHARE/additions.json}"
+STATE_DIR="${XDG_STATE_HOME:-$HOME/.local/state}/nosignal"
+STATE="$STATE_DIR/additions-status.json"
+
+[ -f "$MANIFEST" ] || { echo "nosignal-additions: manifest not found: $MANIFEST" >&2; exit 1; }
+
+status() {
+  mkdir -p "$STATE_DIR"
+  {
+    printf '{"checked":"%s","items":[' "$(date -Iseconds)"
+    sep=""
+    jq -c '.items[]' "$MANIFEST" | while IFS= read -r item; do
+      check=$(printf '%s' "$item" | jq -r '.check')
+      if sh -c "$check" >/dev/null 2>&1; then inst=true; else inst=false; fi
+      printf '%s' "$sep"
+      printf '%s' "$item" | jq -c --argjson inst "$inst" 'del(.check, .install) + {installed: $inst}'
+      sep=","
+    done
+    printf ']}\n'
+  } > "$STATE.tmp"
+  jq -e . "$STATE.tmp" >/dev/null    # never replace the cache with broken JSON
+  mv "$STATE.tmp" "$STATE"
+}
+
+install_one() {
+  id="$1"
+  item=$(jq -ce --arg id "$id" '.items[] | select(.id == $id)' "$MANIFEST") \
+    || { echo "nosignal-additions: unknown addition: $id" >&2; exit 1; }
+  name=$(printf '%s' "$item" | jq -r '.name')
+  cmd=$(printf '%s' "$item" | jq -r '.install')
+  printf '\033[1;34m::\033[0m installing %s\n' "$name"
+  sh -ec "$cmd"
+  printf '\033[1;34m::\033[0m %s — installer finished\n' "$name"
+  status
+}
+
+case "${1:-}" in
+  status)  status ;;
+  list)    jq -r '.items[] | "\(.id)\t\(.name)"' "$MANIFEST" ;;
+  install) [ -n "${2:-}" ] || { echo "usage: nosignal-additions install <id>" >&2; exit 2; }
+           install_one "$2" ;;
+  *)       echo "usage: nosignal-additions status | list | install <id>" >&2; exit 2 ;;
+esac

os updates/additions-installer/obs-extras.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# obs-extras.sh — OBS Studio with the right hardware encoders for THIS box.
+# The Additions page ships on every install and GPUs differ (AMD / Intel /
+# NVIDIA, any mix — e.g. AMD discrete + Intel iGPU), so the
+# encoder runtime packages are DETECTED per machine, not hardcoded.
+#
+#   obs-extras.sh check     exit 0 only if OBS + everything this box's GPUs
+#                           need is installed (drives the Additions row state)
+#   obs-extras.sh install   install OBS + the detected encoder runtimes
+#
+# Per-vendor encoder support on Arch:
+#   AMD    — VAAPI (H.264/HEVC/AV1) ships inside mesa (base system): no extra
+#            package since the libva-mesa-driver merge.
+#   Intel  — intel-media-driver (VAAPI) + vpl-gpu-rt (QuickSync/QSV runtime).
+#   NVIDIA — NVENC comes with the proprietary driver (nvidia-utils or a
+#            legacy branch). Deliberately NOT auto-installed here: the driver
+#            branch is a system-level decision (see gaming-enablement's
+#            NVIDIA notes) — we print a pointer instead.
+set -eu
+
+gpus=$(lspci -nn 2>/dev/null | grep -Ei 'vga|3d|display' || true)
+
+needed=""
+case "$gpus" in *[Ii]ntel*) needed="intel-media-driver vpl-gpu-rt" ;; esac
+
+check() {
+  pacman -Q obs-studio >/dev/null 2>&1 || return 1
+  for p in $needed; do
+    pacman -Q "$p" >/dev/null 2>&1 || return 1
+  done
+  return 0
+}
+
+do_install() {
+  # shellcheck disable=SC2086 — $needed is a deliberate word-split list
+  sudo pacman -S --needed --noconfirm obs-studio $needed
+  case "$gpus" in
+    *[Aa][Mm][Dd]*|*ATI*)
+      echo ":: AMD GPU: VAAPI encoders ship in mesa — already present." ;;
+  esac
+  case "$gpus" in
+    *[Nn][Vv][Ii][Dd][Ii][Aa]*)
+      if pacman -Q nvidia-utils >/dev/null 2>&1; then
+        echo ":: NVIDIA GPU: NVENC available via the installed driver."
+      else
+        echo "NOTE: NVIDIA GPU detected but no proprietary driver — NVENC needs"
+        echo "      it (nvidia-utils, or a legacy branch for pre-Turing cards)."
+      fi ;;
+  esac
+  [ -n "$needed" ] && echo ":: Intel GPU: VAAPI + QuickSync runtimes installed."
+  echo ":: restart OBS to pick up new encoders."
+}
+
+case "${1:-}" in
+  check)   check ;;
+  install) do_install ;;
+  *)       echo "usage: obs-extras.sh check|install" >&2; exit 2 ;;
+esac

os updates/additions-installer/patch-additions-page.sh

@@ -0,0 +1,62 @@
+#!/bin/sh
+# patch-additions-page.sh — register the NoSignal Additions page in
+# caelestia-shell. Runs as root (via sudo from the installer, or via the
+# pacman hook after every caelestia-shell upgrade, which reverts both
+# registry files). Idempotent.
+#
+# What it does:
+#   1. copies AdditionsPage.qml (next to this script) into the shell's
+#      pages/ dir (untracked file — pacman upgrades leave it alone)
+#   2. swaps the REMAINING "System" PlaceholderComp in PageCompRegistry.qml
+#      (the Plugins stub) for a StackPage hosting AdditionsPage.
+#      REQUIRES the Updates-page patch to be applied first — before it,
+#      the first placeholder is the Updates stub, and this patch would grab
+#      the wrong slot (guarded below).
+#   3. relabels the menu entry in PageRegistry.qml: "Plugins" → "Additions".
+#
+# NEXUS is overridable for testing the regexes against copies.
+set -eu
+
+SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+NEXUS=${NEXUS:-/etc/xdg/quickshell/caelestia/modules/nexus}
+COMPREG="$NEXUS/PageCompRegistry.qml"
+PAGEREG="$NEXUS/PageRegistry.qml"
+
+[ -f "$COMPREG" ] || { echo "caelestia-shell not found at $NEXUS — nothing to patch"; exit 0; }
+
+install -m 0644 "$SELF_DIR/AdditionsPage.qml" "$NEXUS/pages/AdditionsPage.qml"
+
+# --- component registry: Plugins placeholder -> AdditionsPage ---------------
+if grep -q 'AdditionsPage' "$COMPREG"; then
+  echo ":: component registry already patched"
+elif ! grep -q 'UpdatesPage' "$COMPREG"; then
+  echo "WARNING: Updates patch not applied — the first placeholder" >&2
+  echo "         is the Updates stub, not Plugins. Run the updates-panel patch" >&2
+  echo "         first, then re-run $(basename "$0")." >&2
+else
+  cp -n "$COMPREG" "$COMPREG.pre-nosignal-additions"
+  perl -0pi -e 's/Component \{\s*\n\s*PlaceholderComp \{\}\s*\n\s*\},/Component {\n            \/\/ Additions (NoSignal)\n            StackPage {\n                Component {\n                    AdditionsPage {}\n                }\n            }\n        },/' "$COMPREG"
+  if grep -q 'AdditionsPage' "$COMPREG"; then
+    echo ":: patched $COMPREG (Additions page registered)"
+  else
+    echo "WARNING: patch did not apply — upstream PageCompRegistry.qml changed" >&2
+    echo "         shape. The Additions page is installed but not registered;" >&2
+    echo "         update the regex in $(basename "$0")." >&2
+  fi
+fi
+
+# --- menu registry: relabel Plugins -> Additions -----------------------------
+if [ -f "$PAGEREG" ]; then
+  if grep -q '"Additions"' "$PAGEREG"; then
+    echo ":: menu entry already relabeled"
+  else
+    cp -n "$PAGEREG" "$PAGEREG.pre-nosignal-additions"
+    perl -pi -e 's/label: qsTr\("Plugins"\),/label: qsTr("Additions"),/; s/description: qsTr\("Manage plugins"\),/description: qsTr("Install optional software"),/' "$PAGEREG"
+    if grep -q '"Additions"' "$PAGEREG"; then
+      echo ":: relabeled menu entry Plugins -> Additions"
+    else
+      echo "WARNING: relabel did not apply (upstream PageRegistry.qml changed)." >&2
+      echo "         Cosmetic only — the page still works under the old label." >&2
+    fi
+  fi
+fi

os updates/app-theme-awareness/README.md

@@ -0,0 +1,67 @@
+# app-theme-awareness
+
+User-level, no root.
+
+## Goal
+Make external apps (Chrome/Chromium, Electron, Firefox, GTK, Qt) **follow
+Caelestia's light/dark mode** automatically — dark when Caelestia is dark.
+
+## Why they don't today
+Modern apps read one signal: `org.freedesktop.appearance` → `color-scheme`,
+published by **xdg-desktop-portal**. By default that value is **0
+("no preference")** because nothing sets it — `gsettings
+org.gnome.desktop.interface color-scheme` is `'default'`. So every app defaults
+to light. All portal pieces are already installed (`xdg-desktop-portal`,
+`-gtk`, `-hyprland`); `libadwaita` is present.
+
+## How this works
+- **`nosignal-app-theme-sync`**: reads `caelestia scheme get` ("Mode: dark|
+  light") and sets:
+  - `gsettings org.gnome.desktop.interface color-scheme` → `prefer-dark` /
+    `prefer-light`. xdg-desktop-portal-gtk republishes this as the freedesktop
+    appearance `color-scheme`, which **Chrome, Electron, Firefox, GTK4/libadwaita
+    and Qt6 honor** (UI + web `prefer-color-scheme`).
+  - `gtk-application-prefer-dark-theme` in `gtk-3.0`/`gtk-4.0` `settings.ini`
+    for legacy GTK3 apps that ignore the portal.
+- **`nosignal-app-theme.path` + `.service`** (user units, mirroring NoSignal's
+  `hyprmoncfgd-rescan.path`): watch `~/.local/state/caelestia/scheme.json` and
+  re-run the sync on every scheme change, and run it once at login. So flipping
+  Caelestia light↔dark flips the apps live.
+- **`portals.conf`**: pins the Settings portal backend to `gtk` (keeping
+  Hyprland's portal default for screencast), so the appearance value is served
+  reliably. Installed only if the user has no `portals.conf`.
+
+`install-app-theme-awareness.sh` does all of it idempotently — entirely
+user-level (no root, no pacman hook).
+
+## Per-app notes
+- **Chrome/Chromium (Wayland):** follows the portal automatically. If the UI
+  stays light, set `chrome://settings` → Appearance → **GTK / "Use system"**.
+- **Qt:** `QT_QPA_PLATFORMTHEME=qtengine` is already set; Qt6 honors the portal.
+  Old Qt5 apps may need a dark qt5ct/Kvantum style (out of scope).
+- **GTK3 dark fidelity:** prefer-dark uses Adwaita's built-in dark rendering. For
+  a fuller dark GTK3 theme the builder can add `gnome-themes-extra` (ships
+  `Adwaita-dark`) — optional.
+
+## Builder integration
+Ship the sync script in the layer bin, the two user units (enabled by default,
+like the other NoSignal user units), and seed `portals.conf`. Ideally Caelestia
+itself could set `color-scheme` when its scheme flips; until then these units
+bridge it. Mode is read from `caelestia scheme get`, so it tracks the dynamic
+Material scheme.
+
+## Verify (after install)
+```
+caelestia scheme set -m light   # or via the Caelestia UI
+gsettings get org.gnome.desktop.interface color-scheme   # -> 'prefer-light'
+caelestia scheme set -m dark
+gsettings get org.gnome.desktop.interface color-scheme   # -> 'prefer-dark'
+# Chrome/GTK apps follow within a moment.
+```
+
+## Files
+- `nosignal-app-theme-sync` — mode → portal/GTK sync.
+- `nosignal-app-theme.service` / `.path` — login run + watch-on-change.
+- `portals.conf` — Settings backend = gtk.
+- `install-app-theme-awareness.sh` — idempotent user-level installer.
+- `migrations/1781442000-app-theme-awareness.sh` — delegates to it.

os updates/app-theme-awareness/install-app-theme-awareness.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+# install-app-theme-awareness.sh — idempotent. User-level (no root).
+#
+# External apps (Chrome, Electron, Firefox, GTK, Qt) don't follow
+# the desktop theme because nothing publishes a color-scheme preference — the
+# portal reports "no preference" (0). This installs a sync that mirrors
+# Caelestia's light/dark mode to the freedesktop appearance portal + GTK, and
+# units that re-run it on every scheme change.
+set -eu
+
+HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+BIN="$HOME/.local/bin"
+UNITS="${XDG_CONFIG_HOME:-$HOME/.config}/systemd/user"
+PORTAL="${XDG_CONFIG_HOME:-$HOME/.config}/xdg-desktop-portal"
+
+install -Dm0755 "$HERE/nosignal-app-theme-sync"   "$BIN/nosignal-app-theme-sync"
+install -Dm0644 "$HERE/nosignal-app-theme.service" "$UNITS/nosignal-app-theme.service"
+install -Dm0644 "$HERE/nosignal-app-theme.path"    "$UNITS/nosignal-app-theme.path"
+echo "installed sync script + user units"
+
+# portals.conf: only create if the user doesn't already have one (don't clobber)
+if [ ! -e "$PORTAL/portals.conf" ]; then
+  install -Dm0644 "$HERE/portals.conf" "$PORTAL/portals.conf"
+  echo "installed $PORTAL/portals.conf (Settings=gtk)"
+else
+  echo "note: $PORTAL/portals.conf exists — leaving it; ensure it has org.freedesktop.impl.portal.Settings=gtk"
+fi
+
+# enable the watcher + run an initial sync (needs a running user systemd bus)
+if systemctl --user show-environment >/dev/null 2>&1; then
+  systemctl --user daemon-reload
+  systemctl --user enable --now nosignal-app-theme.path nosignal-app-theme.service || true
+  echo "enabled nosignal-app-theme.{path,service}"
+else
+  echo "note: no user systemd bus here — units installed; they start at next login"
+  "$BIN/nosignal-app-theme-sync" || true
+fi
+
+echo "app-theme-awareness: ok"

os updates/app-theme-awareness/nosignal-app-theme-sync

@@ -0,0 +1,39 @@
+#!/bin/sh
+# nosignal-app-theme-sync — make external apps follow Caelestia's light/dark mode.
+#
+# Reads Caelestia's current mode (`caelestia scheme get` -> "Mode: dark|light")
+# and publishes it so toolkit apps follow:
+#   * gsettings color-scheme  -> xdg-desktop-portal(-gtk) org.freedesktop.appearance
+#     => Chrome/Chromium, Electron, Firefox, GTK4/libadwaita, Qt6 all follow.
+#   * GTK3 prefer-dark flag in gtk-3.0/gtk-4.0 settings.ini for legacy GTK apps
+#     that don't read the portal.
+# Idempotent; safe to run repeatedly. Invoked at login and on scheme change by
+# the nosignal-app-theme .service/.path units.
+set -u
+
+mode=$(caelestia scheme get 2>/dev/null | awk -F': *' '/Mode:/{print tolower($2); exit}')
+case "$mode" in
+  dark)  cs=prefer-dark;  pd=true  ;;
+  light) cs=prefer-light; pd=false ;;
+  *)     cs=default;      pd=false ;;   # unknown -> no preference
+esac
+
+# 1. master switch (portal): Chrome / Electron / Firefox / GTK4 / Qt6
+if command -v gsettings >/dev/null 2>&1; then
+  gsettings set org.gnome.desktop.interface color-scheme "$cs" 2>/dev/null || true
+fi
+
+# 2. legacy GTK3 (+GTK4) prefer-dark flag for apps that ignore the portal
+for v in 3.0 4.0; do
+  d="${XDG_CONFIG_HOME:-$HOME/.config}/gtk-$v"; f="$d/settings.ini"
+  mkdir -p "$d"
+  [ -f "$f" ] || printf '[Settings]\n' > "$f"
+  grep -q '^\[Settings\]' "$f" || printf '[Settings]\n' >> "$f"
+  if grep -q '^gtk-application-prefer-dark-theme' "$f"; then
+    sed -i "s/^gtk-application-prefer-dark-theme.*/gtk-application-prefer-dark-theme=$pd/" "$f"
+  else
+    printf 'gtk-application-prefer-dark-theme=%s\n' "$pd" >> "$f"
+  fi
+done
+
+echo "app-theme: caelestia mode=${mode:-unknown} -> color-scheme=$cs, gtk prefer-dark=$pd"

os updates/app-theme-awareness/nosignal-app-theme.path

@@ -0,0 +1,9 @@
+[Unit]
+Description=Watch Caelestia scheme and re-sync external app theme on change
+
+[Path]
+PathChanged=%h/.local/state/caelestia/scheme.json
+Unit=nosignal-app-theme.service
+
+[Install]
+WantedBy=default.target

os updates/app-theme-awareness/nosignal-app-theme.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=Sync external app theme (portal/GTK) to Caelestia's light/dark mode
+
+[Service]
+Type=oneshot
+ExecStart=%h/.local/bin/nosignal-app-theme-sync
+
+[Install]
+WantedBy=default.target

os updates/app-theme-awareness/portals.conf

@@ -0,0 +1,8 @@
+# NoSignal: keep Hyprland's portal as default (screencast/screenshot) but let
+# xdg-desktop-portal-gtk serve the Settings interface, so the
+# org.freedesktop.appearance color-scheme (driven by gsettings) is published
+# reliably to apps. Installed to ~/.config/xdg-desktop-portal/portals.conf
+# only if no user portals.conf already exists.
+[preferred]
+default=hyprland;gtk
+org.freedesktop.impl.portal.Settings=gtk

os updates/base-default-packages/README.md

@@ -0,0 +1,24 @@
+# base-default-packages (installed by default, not opt-in)
+
+The install command needs root — run it once.
+
+Packages that should ship **installed by default** in the base build (distinct
+from the opt-in Settings → Additions). Official repos only; GPU-agnostic.
+
+| Package | Provides | Repo | Why |
+|---------|----------|------|-----|
+| `github-cli` | `gh` | extra | GitHub CLI — default dev tooling (PRs, issues, repo ops, auth) |
+
+## Builder integration
+Add the package(s) above to the ISO base package set. `install-base-default-
+packages.sh` covers already-installed machines (idempotent `pacman -S --needed`)
+and is wired via the migration below.
+
+## Apply on an existing box
+```
+sudo pacman -S --needed github-cli
+```
+
+## Files
+- `install-base-default-packages.sh` — idempotent installer (root).
+- `migrations/1781452800-base-default-packages.sh` — delegates to it.

os updates/base-default-packages/install-base-default-packages.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+# install-base-default-packages.sh — idempotent. Needs root (pacman).
+#
+# Ensures packages that should be installed BY DEFAULT in the base build (not
+# opt-in Additions). For the ISO, the builder should add these to the base
+# package set; this covers already-installed systems via nosignal-update.
+set -eu
+
+# Base default packages (official repos; GPU-agnostic):
+PKGS="github-cli"
+
+if [ "$(id -u)" -eq 0 ]; then
+  pacman -S --needed --noconfirm $PKGS
+elif command -v sudo >/dev/null 2>&1; then
+  sudo pacman -S --needed --noconfirm $PKGS
+else
+  echo "need root to install: $PKGS" >&2
+  exit 1
+fi
+echo "base default packages ensured: $PKGS"

os updates/cachyos-repo-switch/02-nosignal-cachy

@@ -0,0 +1,3 @@
+# NoSignal: flip the CachyOS repos from the settings toggle without a password.
+# Pinned to the fixed, root-owned helper, which itself only accepts detect/status/enable/disable.
+%wheel ALL=(ALL) NOPASSWD: /usr/local/bin/nosignal-cachy-repo detect, /usr/local/bin/nosignal-cachy-repo status, /usr/local/bin/nosignal-cachy-repo enable, /usr/local/bin/nosignal-cachy-repo disable

os updates/cachyos-repo-switch/CachyRepoToggleRow.qml

@@ -0,0 +1,73 @@
+// CachyRepoToggleRow.qml (NoSignal) — Settings -> Services toggle to enable /
+// disable the CachyOS pacman repositories. Auto-detects the best x86-64 microarch
+// tier the CPU supports (v4 > v3). Live state polls `nosignal-cachy-repo status`
+// (no root). enable/disable run in a floating terminal so the pacman/download
+// output stays visible; the grant is passwordless via sudo -n
+// (/etc/sudoers.d/02-nosignal-cachy). enable adds repos, converts userspace to
+// the optimized builds (pacman -Suu, pacman pinned stock), and installs the
+// linux-cachyos kernel; disable reverts to stock and removes the cachy kernel
+// (keeping stock `linux` bootable). A reboot switches the running kernel.
+//
+// Untracked file under modules/nexus/common — auto-discovered as the type
+// `CachyRepoToggleRow` via `import qs.modules.nexus.common`. Survives caelestia
+// upgrades; pairs with the one-line insert in ServicesPage.qml.
+import QtQuick
+import Quickshell.Io
+import qs.modules.nexus.common
+
+ToggleRow {
+    id: root
+
+    property bool repoOn: false   // NB: not `enabled` (reserved Item property)
+
+    text: qsTr("CachyOS repositories")
+    subtext: repoOn
+        ? qsTr("On — CachyOS optimized builds + linux-cachyos kernel (reboot to run it)")
+        : qsTr("Switch to CachyOS optimized builds + linux-cachyos kernel (reboot after)")
+
+    onToggled: {
+        if (checked)
+            enableProc.running = true;
+        else
+            disableProc.running = true;
+        reconcile.restart();
+    }
+
+    // --- live state -----------------------------------------------------------
+    Process {
+        id: statusProc
+        command: ["/usr/local/bin/nosignal-cachy-repo", "status"]
+        stdout: StdioCollector {
+            onStreamFinished: {
+                root.repoOn = text.trim() === "enabled";
+                root.checked = root.repoOn;   // drive switch from real state
+            }
+        }
+    }
+
+    // --- actions (passwordless; shown in a terminal for pacman output) ---------
+    Process {
+        id: enableProc
+        command: ["kitty", "--class", "TUI.float", "-e", "sh", "-c", "sudo -n /usr/local/bin/nosignal-cachy-repo enable; printf '\\nPress Enter to close...'; read _"]
+        onExited: reconcile.restart()
+    }
+    Process {
+        id: disableProc
+        command: ["kitty", "--class", "TUI.float", "-e", "sh", "-c", "sudo -n /usr/local/bin/nosignal-cachy-repo disable; printf '\\nPress Enter to close...'; read _"]
+        onExited: reconcile.restart()
+    }
+
+    // --- polling --------------------------------------------------------------
+    Timer {
+        interval: 5000
+        repeat: true
+        running: true
+        triggeredOnStart: true
+        onTriggered: statusProc.running = true
+    }
+    Timer {
+        id: reconcile
+        interval: 2000
+        onTriggered: statusProc.running = true
+    }
+}

os updates/cachyos-repo-switch/README.md

@@ -0,0 +1,79 @@
+# cachyos-repo-switch — CachyOS optimized repos + kernel switch (sudoless, auto-tier)
+
+Works **both directions** — ON → reboot into `linux-cachyos`; OFF → reboot back to stock.
+
+## What it is
+One toggle in **Settings → Services** (under "Passwordless sudo") that switches the
+system **to/from** CachyOS-optimized builds **and** the `linux-cachyos` kernel —
+passwordless, auto-detecting the best x86-64 tier (v4 > v3), fully unattended
+(`--noconfirm`). Refuses below x86-64-v3.
+
+## Pieces
+- **`nosignal-cachy-repo`** → `/usr/local/bin` — `detect` / `status` / `enable` /
+  `disable` (+ `--dry-run`).
+- **`02-nosignal-cachy`** → `/etc/sudoers.d` (0440, `visudo -c`-validated at install)
+  — `%wheel` NOPASSWD, pinned to the four exact subcommands of the fixed helper.
+- **`CachyRepoToggleRow.qml`** → `nexus/common/` — baked into the pinned
+  nosignal-shell fork; this copy + `patch-servicespage.sh` are the migration
+  path for old stock-caelestia installs.
+- **`patch-servicespage.sh`** — inserts the toggle into `ServicesPage.qml` (only used
+  by the nosignal-update migration; the builder skips it via NOSIGNAL_SKIP_SHELL_PATCH).
+
+## Two design fixes baked in — DO NOT reintroduce the bugs
+1. **Architecture (critical).** CachyOS v3/v4 packages have arch `x86_64_v3`/`x86_64_v4`.
+   Upstream relies on its OWN pacman (reads `Architecture = auto` as "include v3/v4").
+   We keep **stock pacman** (reads `auto` as just `x86_64`) → it would arch-reject every
+   v3/v4 package and the conversion would silently do nothing. So `enable` sets
+   `Architecture` EXPLICITLY to the tier (`x86_64 x86_64_v3 x86_64_v4` for v4,
+   `x86_64 x86_64_v3` for v3); `disable` restores `Architecture = auto`.
+2. **Targeted revert (no whole-base pull).** `disable` reinstalls ONLY packages whose
+   local-DB `Packager` is `CachyOS …` (excluding the cachy keyring/mirrorlist pkgs,
+   removed separately) — never the full base. Nothing converted ⇒ nothing to do.
+
+## Why stock pacman (and `--ignore pacman`)
+Upstream `cachyos-repo.sh` is interactive, ends with `pacman -Syu`, and swaps in a
+CachyOS `pacman`. We reuse its signed keyring/mirrorlists + `.awk` stanza files but
+drive pacman ourselves (stock, unattended). The CachyOS `pacman` build stamps an
+`%INSTALLED_DB%` key into the local DB that stock pacman then warns about on every op,
+so `enable` runs `pacman -Suu --ignore pacman` to pin pacman stock. **Keep that flag.**
+
+## Kernel guard
+`enable` installs `linux-cachyos` + `-headers` (the limine-mkinitcpio-hook generates
+the boot entry; stock `linux` stays as a fallback). `disable` removes the cachy kernel
+ONLY after confirming stock `linux` is installed — never strips the last bootable
+kernel. A **reboot** is needed after ON (to run the new kernel) and after OFF (to leave
+it); pick the entry at the Limine menu.
+
+## Live-fetch vs vendored (build decision: LIVE-FETCH)
+`enable`/`disable` fetch upstream `cachyos-repo.tar.xz` (keyring + mirrorlists + `.awk`).
+Enabling CachyOS is inherently online (it pulls optimized builds + the kernel from
+CachyOS mirrors), so there is no offline scenario to vendor for — live-fetch needs no
+bundled artifacts and never goes stale. If a future air-gapped image needs it, vendor
+the tarball and drop the fetch in `fetch_upstream()`.
+
+## CachyOS-exclusive packages don't revert (by design)
+Any package with no stock equivalent stays a CachyOS build on OFF and is reported, not
+removed (e.g. `quickshell-git`, `gamescope-session-git` —
+harmless; self-clear on the next `yay -Sua`). The `linux-cachyos` kernel is the one
+exception (removed explicitly, guarded as above). Snapshot entries keep historical
+cachy UKIs under the Snapshots submenu (cosmetic; age out as snapshots rotate).
+
+## Closure deps
+`curl`, `tar`/`xz`, `gawk` (all via Arch `base`), `kitty`, plus `limine` +
+`limine-mkinitcpio-hook` for the kernel boot entry — all already on the NoSignal base.
+
+## Install (root)
+```
+sudo sh ~/.local/share/nosignal/cachyos-repo-switch/install-cachyos-repo-switch.sh
+```
+Then reload caelestia (or log out/in) so the toggle loads.
+
+## Use
+- Settings → Services → **CachyOS repositories**: on opens a floating terminal showing
+  the full pacman transaction (passwordless); off reverts to stock.
+- Or terminal: `sudo nosignal-cachy-repo enable` / `disable`,
+  `nosignal-cachy-repo status` / `detect` (add `--dry-run` to preview).
+
+## Files
+- `nosignal-cachy-repo`, `02-nosignal-cachy`, `install-cachyos-repo-switch.sh`,
+  `CachyRepoToggleRow.qml`, `patch-servicespage.sh`.

os updates/cachyos-repo-switch/install-cachyos-repo-switch.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# install-cachyos-repo-switch.sh — idempotent. REQUIRES ROOT.
+#
+# Installs the CachyOS repo + kernel switch feature:
+#   1. /usr/local/bin/nosignal-cachy-repo          (detect/status/enable/disable CLI)
+#   2. /etc/sudoers.d/02-nosignal-cachy            (sudoless grant, validated first)
+#   3. patches caelestia ServicesPage to show the toggle (via patch-servicespage.sh)
+#
+# Does NOT enable the CachyOS repos — that's a deliberate user action via the
+# toggle (it is heavy, networked and reboots the kernel).
+set -eu
+
+SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+[ "$(id -u)" -eq 0 ] || { echo "must run as root (writes /usr/local/bin + sudoers.d)" >&2; exit 1; }
+
+# 1. CLI helper
+install -m 0755 "$SELF_DIR/nosignal-cachy-repo" /usr/local/bin/nosignal-cachy-repo
+echo ":: installed /usr/local/bin/nosignal-cachy-repo"
+
+# 1b. standalone DB repair tool. A normal -Syu while
+#     CachyOS is enabled pulls the CachyOS pacman, which stamps `%INSTALLED_DB%`
+#     into the local DB; stock pacman then warns about it on every op. The
+#     corrected helper above pins pacman durably (IgnorePkg) while enabled and
+#     strips the field on disable, but ship the standalone repair tool too — and
+#     one-shot-clean any contamination already present (no-op on a fresh box).
+install -m 0755 "$SELF_DIR/nosignal-cachy-db-clean" /usr/local/bin/nosignal-cachy-db-clean
+echo ":: installed /usr/local/bin/nosignal-cachy-db-clean"
+if grep -lrx '%INSTALLED_DB%' /var/lib/pacman/local/*/desc >/dev/null 2>&1; then
+    echo ":: local DB has %INSTALLED_DB% contamination — cleaning now…"
+    /usr/local/bin/nosignal-cachy-db-clean || true
+fi
+
+# 2. sudoers drop-in — validate with `visudo -c` BEFORE it reaches /etc/sudoers.d
+#    (a malformed sudoers can lock out sudo entirely). install to a temp path,
+#    check, then move into place at mode 0440.
+TMP_SUDO=$(mktemp /tmp/02-nosignal-cachy.XXXXXX)
+install -m 0440 "$SELF_DIR/02-nosignal-cachy" "$TMP_SUDO"
+if visudo -cf "$TMP_SUDO" >/dev/null 2>&1; then
+    install -m 0440 -o root -g root "$TMP_SUDO" /etc/sudoers.d/02-nosignal-cachy
+    echo ":: installed /etc/sudoers.d/02-nosignal-cachy (validated)"
+else
+    echo "ERROR: 02-nosignal-cachy failed visudo -c — NOT installing the sudoers drop-in." >&2
+    echo "       (the toggle will prompt for a password instead of running passwordless)" >&2
+fi
+rm -f "$TMP_SUDO"
+
+# 3. panel toggle (caelestia ServicesPage). Non-fatal if the shell isn't present.
+# Skipped when NOSIGNAL_SKIP_SHELL_PATCH is set — the NoSignal builder bakes
+# CachyRepoToggleRow + the page insert into the pinned nosignal-shell fork, so
+# the patch is redundant there. Migrations of old stock-caelestia boxes
+# leave it unset and patch.
+if [ -n "${NOSIGNAL_SKIP_SHELL_PATCH:-}" ]; then
+    echo ":: skipping ServicesPage patch (NOSIGNAL_SKIP_SHELL_PATCH — fork bakes the toggle)"
+elif [ -x "$SELF_DIR/patch-servicespage.sh" ]; then
+    sh "$SELF_DIR/patch-servicespage.sh" || echo "WARNING: ServicesPage patch failed (CLI still usable from a terminal)" >&2
+fi
+
+echo ":: done. Toggle it in Settings -> Services, or: sudo nosignal-cachy-repo enable"

os updates/cachyos-repo-switch/nosignal-cachy-db-clean

@@ -0,0 +1,54 @@
+#!/bin/bash
+# nosignal-cachy-db-clean — repair tool for boxes already contaminated by a
+# CachyOS pacman run.
+#
+# Symptom this fixes: every pacman/yay op prints a flood of
+#   warning: <pkg>: unknown key '%INSTALLED_DB%' in local database
+# `%INSTALLED_DB%` is a field the CachyOS `pacman` build writes into the local DB;
+# stock Arch pacman doesn't understand it and warns about it on EVERY operation.
+# It is harmless (the DB is structurally valid — `pacman -Dk` passes — and
+# transactions resolve fine), but it looks exactly like database corruption.
+#
+# This strips the `%INSTALLED_DB%` field from every /var/lib/pacman/local/*/desc.
+# Each block is exactly: a `%INSTALLED_DB%` line + one value line + a blank
+# separator. Idempotent — only rewrites files that contain the field; safe to
+# re-run. Use --dry-run to preview. REQUIRES ROOT (writes the local DB) unless
+# --dry-run.
+set -u
+
+DB="${PACMAN_LOCAL_DB:-/var/lib/pacman/local}"
+DRY=0
+[[ "${1:-}" == "--dry-run" ]] && DRY=1
+
+if [[ $DRY -eq 0 && $EUID -ne 0 ]]; then
+  echo "Run as root (writes $DB), e.g.: sudo $0   — or preview with: $0 --dry-run" >&2
+  exit 1
+fi
+
+mapfile -t hits < <(grep -lrx '%INSTALLED_DB%' "$DB"/*/desc 2>/dev/null)
+if [[ ${#hits[@]} -eq 0 ]]; then
+  echo "Local pacman DB already clean — no %INSTALLED_DB% fields found."
+  exit 0
+fi
+
+echo "Found %INSTALLED_DB% in ${#hits[@]} package entr(y/ies)."
+n=0
+for desc in "${hits[@]}"; do
+  if [[ $DRY -eq 1 ]]; then
+    echo "+ would strip: $desc"
+    n=$((n+1)); continue
+  fi
+  tmp="$desc.nsclean.$$"
+  if awk '/^%INSTALLED_DB%$/{s=1;next} s&&/^$/{s=0;next} s{next} {print}' "$desc" > "$tmp" \
+     && chmod --reference="$desc" "$tmp" 2>/dev/null; then
+    mv -f "$tmp" "$desc"; n=$((n+1))
+  else
+    rm -f "$tmp"; echo "  ! failed to rewrite: $desc" >&2
+  fi
+done
+
+if [[ $DRY -eq 1 ]]; then
+  echo "(dry-run) would have cleaned $n entr(y/ies). Re-run as root without --dry-run."
+else
+  echo "Cleaned $n local-DB entr(y/ies). Verify with:  pacman -Dk   and a quiet  pacman -Q"
+fi

os updates/cachyos-repo-switch/nosignal-cachy-repo

@@ -0,0 +1,306 @@
+#!/bin/bash
+# nosignal-cachy-repo — enable/disable the CachyOS pacman repositories, auto-
+# selecting the best x86-64 microarchitecture tier the CPU supports (v4 > v3).
+# Optimized CachyOS repos require x86-64-v3 or newer; below that this refuses.
+#
+# Driven by the sudoless GUI toggle:
+#     sudo -n /usr/local/bin/nosignal-cachy-repo {enable|disable|status|detect} [--dry-run]
+#
+# enable: trust keys + install mirrorlists + add repo stanzas, then run
+# `pacman -Suu --noconfirm` to switch the system over to the CachyOS optimized
+# builds — UNATTENDED, so a single toggle flip auto-converts (the GUI still shows
+# the transaction in the floating terminal). --noconfirm auto-accepts any
+# replacements/removals pacman proposes. We do NOT swap in the upstream CachyOS
+# `pacman` package — it is pinned stock via --ignore pacman (keeps the local DB
+# clean). enable also installs the CachyOS kernel (linux-cachyos).
+# disable strips the repos, then reverts ONLY the CachyOS-built packages back to
+# their stock Arch builds (-Suuy for version diffs + a targeted reinstall of the
+# same-version rebuilds, identified by Packager "CachyOS …" in the local DB) and
+# removes the keyring/key — a true round-trip back to stock, UNATTENDED. Touches
+# only what was actually converted (nothing converted => instant, no base pull).
+# A CachyOS-exclusive package with no stock equivalent is auto-skipped + REPORTED
+# (not auto-removed). The CachyOS KERNEL is the exception: disable removes
+# linux-cachyos, but only after confirming stock `linux` is installed so the box
+# stays bootable.
+set -u
+
+PACCONF="/etc/pacman.conf"
+PACBAK="/etc/pacman.conf.nosignal-cachy.bak"
+CACHY_TARBALL="https://mirror.cachyos.org/cachyos-repo.tar.xz"
+MIRROR="https://mirror.cachyos.org/repo/x86_64/cachyos"
+CACHY_KEY="F3B607488DB35A47"
+KEYSERVER="keyserver.ubuntu.com"
+
+DRYRUN=0
+ARGS=()
+for a in "$@"; do
+  if [[ "$a" == "--dry-run" ]]; then DRYRUN=1; else ARGS+=("$a"); fi
+done
+set -- ${ARGS+"${ARGS[@]}"}
+CMD="${1:-}"
+
+run() { echo "+ $*"; [[ $DRYRUN -eq 1 ]] && return 0; "$@"; }
+
+detect_tier() {
+  local h; h=$(/lib/ld-linux-x86-64.so.2 --help 2>/dev/null)
+  if   grep -q "x86-64-v4 (supported" <<<"$h"; then echo v4
+  elif grep -q "x86-64-v3 (supported" <<<"$h"; then echo v3
+  else echo none; fi
+}
+
+is_enabled() { grep -qE '^\[cachyos' "$PACCONF" 2>/dev/null; }
+
+# --- durable stock-pacman pin -------------------------------------------------
+# `--ignore pacman` only pins pacman for THIS helper's own transaction. While the
+# CachyOS repos are enabled, a routine `pacman -Syu` / `yay -Syu` / nosignal-update
+# upgrades pacman to the CachyOS build, which stamps `%INSTALLED_DB%` into every
+# local-DB entry it touches — stock pacman then warns about that unknown key on
+# EVERY op (a flood that looks exactly like DB corruption). So while enabled we
+# pin pacman in pacman.conf via IgnorePkg too; disable removes the pin. NoSignal
+# ships no IgnorePkg by default, so we manage a single standalone line.
+ensure_ignore_pacman() {
+  grep -qE '^[[:space:]]*IgnorePkg[[:space:]]*=.*\bpacman\b' "$PACCONF" && return 0
+  if grep -qE '^[[:space:]]*IgnorePkg[[:space:]]*=' "$PACCONF"; then
+    run sed -i -E 's/^([[:space:]]*IgnorePkg[[:space:]]*=.*)$/\1 pacman/' "$PACCONF"
+  else
+    run sed -i -E '/^\[options\]/a IgnorePkg = pacman' "$PACCONF"
+  fi
+}
+
+remove_ignore_pacman() {
+  # remove a standalone `IgnorePkg = pacman` line we added…
+  run sed -i -E '/^[[:space:]]*IgnorePkg[[:space:]]*=[[:space:]]*pacman[[:space:]]*$/d' "$PACCONF"
+  # …or drop just the `pacman` token from a shared IgnorePkg list
+  run sed -i -E 's/^([[:space:]]*IgnorePkg[[:space:]]*=.*[[:space:]])pacman([[:space:],]|$)/\1\2/' "$PACCONF"
+}
+
+# Strip the CachyOS `%INSTALLED_DB%` field from the pacman LOCAL DB (left behind
+# whenever a CachyOS pacman ran while enabled — e.g. a normal -Syu). The field is
+# informational only; stock pacman doesn't use it and just warns. Removing it
+# silences the warning flood. Each block is exactly `%INSTALLED_DB%` + one value
+# line + a blank separator. Idempotent: only rewrites desc files that contain it.
+strip_installed_db() {
+  local db="/var/lib/pacman/local" n=0 desc tmp hits
+  hits=$(grep -lrx '%INSTALLED_DB%' "$db"/*/desc 2>/dev/null) || true
+  [[ -z "$hits" ]] && { echo "Local pacman DB already clean (no %INSTALLED_DB%)."; return 0; }
+  while IFS= read -r desc; do
+    [[ -z "$desc" ]] && continue
+    if [[ $DRYRUN -eq 1 ]]; then echo "+ strip %INSTALLED_DB% from $desc"; n=$((n+1)); continue; fi
+    tmp="$desc.nsclean.$$"
+    if awk '/^%INSTALLED_DB%$/{s=1;next} s&&/^$/{s=0;next} s{next} {print}' "$desc" > "$tmp" \
+       && chmod --reference="$desc" "$tmp" 2>/dev/null; then
+      mv -f "$tmp" "$desc"; n=$((n+1))
+    else
+      rm -f "$tmp"
+    fi
+  done <<< "$hits"
+  echo "Stripped %INSTALLED_DB% from $n local-DB entr(y/ies); stock pacman is quiet again."
+}
+
+need_root() {
+  [[ $EUID -eq 0 ]] && return 0
+  echo "Error: must run as root (the toggle uses: sudo -n $0 $CMD)" >&2
+  exit 1
+}
+
+# Fetch + extract the upstream repo tarball (for the maintained .awk stanza
+# files + current keyring/mirrorlist package versions). Echoes the dir.
+fetch_upstream() {
+  local d; d=$(mktemp -d /tmp/nosignal-cachy.XXXXXX) || return 1
+  if [[ $DRYRUN -eq 1 ]]; then echo "$d"; return 0; fi
+  curl -fsSL "$CACHY_TARBALL" | tar -xJ -C "$d" || return 1
+  echo "$d"
+}
+
+case "$CMD" in
+  detect) detect_tier ;;
+
+  status) if is_enabled; then echo enabled; exit 0; else echo disabled; exit 1; fi ;;
+
+  enable)
+    need_root
+    if ! is_enabled; then
+      tier=$(detect_tier)
+      if [[ "$tier" == none ]]; then
+        echo "Error: CPU supports neither x86-64-v3 nor v4; CachyOS optimized repos" >&2
+        echo "       unavailable. Nothing changed." >&2
+        exit 2
+      fi
+      echo "Detected microarchitecture tier: x86-64-$tier"
+      up=$(fetch_upstream) || { echo "Error: could not fetch CachyOS repo tarball (network?)." >&2; exit 4; }
+      trap 'rm -rf "$up"' EXIT
+      src="$up/cachyos-repo"
+
+      # 1) trust the CachyOS signing key
+      run pacman-key --recv-keys "$CACHY_KEY" --keyserver "$KEYSERVER"
+      run pacman-key --lsign-key "$CACHY_KEY"
+
+      # 2) install keyring + mirrorlists (versions tracked from upstream script;
+      #    deliberately EXCLUDE the upstream 'pacman-*' replacement — keep stock pacman)
+      pkgs=()
+      if [[ $DRYRUN -eq 1 ]]; then
+        pkgs=(cachyos-keyring-XX cachyos-mirrorlist-XX cachyos-v3-mirrorlist-XX cachyos-v4-mirrorlist-XX)
+      else
+        mapfile -t pkgs < <(grep -oE '[a-z0-9.+_-]+\.pkg\.tar\.zst' "$src/cachyos-repo.sh" \
+                            | grep -vE '^pacman-' | sort -u)
+      fi
+      urls=(); for p in "${pkgs[@]}"; do urls+=("$MIRROR/$p"); done
+      run pacman -U --noconfirm "${urls[@]}"
+
+      # 3) add the repo stanzas via upstream's maintained awk (tier-appropriate).
+      case "$tier" in
+        v4) awkf="install-v4-repo.awk" ;;
+        v3) awkf="install-repo.awk" ;;
+      esac
+      run cp -a "$PACCONF" "$PACBAK"
+      run gawk -i inplace -f "$src/$awkf" "$PACCONF"
+
+      # The upstream awk sets `Architecture = auto`, which STOCK pacman reads as
+      # just x86_64 — so it would REJECT every x86-64-v3/v4 package ("does not
+      # have a valid architecture") and the conversion would silently do nothing.
+      # (CachyOS's own pacman build reads `auto` as v3/v4; we keep stock pacman.)
+      # So set the tier arch EXPLICITLY.
+      case "$tier" in
+        v4) arch="x86_64 x86_64_v3 x86_64_v4" ;;
+        v3) arch="x86_64 x86_64_v3" ;;
+      esac
+      run sed -i "s/^Architecture = .*/Architecture = $arch/" "$PACCONF"
+      run pacman -Sy
+
+      if [[ $DRYRUN -eq 0 ]] && ! is_enabled; then
+        echo "Error: CachyOS repos not present in $PACCONF after setup." >&2
+        exit 3
+      fi
+      echo "CachyOS repos added (x86-64-$tier)."
+    else
+      echo "CachyOS repos already present — upgrading to optimized builds…"
+    fi
+
+    # Pull the optimized builds, UNATTENDED (--noconfirm) so a single toggle flip
+    # auto-converts the system without a prompt. The GUI still shows the full
+    # transaction in the floating terminal for visibility. NB: --noconfirm
+    # auto-accepts replacements/removals pacman proposes — that's the trade-off
+    # for hands-off conversion.
+    #
+    # --ignore pacman: the cachyos repo ships its OWN pacman build; without this
+    # the -Suu swaps stock pacman for it, which stamps a `%INSTALLED_DB%` key into
+    # every local-DB entry that stock pacman then warns about on every op. Pin
+    # pacman to the stock build so the DB stays clean (matches the keyring/mirror-
+    # list exclusion in step 2 — stock pacman is kept throughout).
+    #
+    # Make that pin DURABLE: --ignore only covers this transaction, but the repos
+    # stay enabled afterwards, so a later routine -Syu would pull the CachyOS pacman
+    # and contaminate the local DB with %INSTALLED_DB%. Pin pacman in pacman.conf
+    # for as long as CachyOS is enabled (disable removes the pin).
+    ensure_ignore_pacman
+    run pacman -Suu --noconfirm --ignore pacman
+
+    # Install the CachyOS KERNEL. The repo switch above converts USERSPACE only;
+    # the kernel is a separate, explicit install. linux-cachyos is CachyOS's
+    # default (sched-ext + BORE, LTO, v3/v4-tuned). The limine-mkinitcpio-hook
+    # auto-generates the boot entry — no manual limine.conf editing. --needed keeps
+    # a re-flip idempotent; stock `linux` is left in place as a fallback entry.
+    run pacman -S --noconfirm --needed linux-cachyos linux-cachyos-headers
+    echo "CachyOS optimized builds + linux-cachyos kernel installed."
+    echo ">> REBOOT and pick the linux-cachyos entry at the Limine menu to run it."
+    ;;
+
+  disable)
+    need_root
+    if ! is_enabled; then echo "CachyOS repos already disabled."; exit 0; fi
+    up=$(fetch_upstream) || up=""
+    [[ -n "$up" ]] && trap 'rm -rf "$up"' EXIT
+
+    # 1) strip the CachyOS repo stanzas (pacman now sees only the stock repos)
+    run cp -a "$PACCONF" "$PACBAK"
+    if [[ -n "$up" && ( $DRYRUN -eq 1 || -f "$up/cachyos-repo/remove-repo.awk" ) ]]; then
+      run gawk -i inplace -f "$up/cachyos-repo/remove-repo.awk" "$PACCONF"
+    fi
+    if [[ $DRYRUN -eq 0 ]] && is_enabled; then   # belt-and-braces if any remain
+      run sed -i '/^\[cachyos/,/^$/d' "$PACCONF"
+    fi
+    # restore the stock Architecture (enable set it to the v3/v4 tier explicitly)
+    run sed -i 's/^Architecture = .*/Architecture = auto/' "$PACCONF"
+    # drop the durable stock-pacman pin enable added (no longer needed off cachy)
+    remove_ignore_pacman
+
+    # 2) TARGETED REVERT — put ONLY the CachyOS-built packages back on stock.
+    #    -Suuy refreshes the stock DBs and downgrades/upgrades any cachy package
+    #    whose version differs from stock (its Packager flips back to Arch). Then
+    #    force-reinstall the REMAINING same-version CachyOS rebuilds — found by
+    #    their Packager ("CachyOS <admin@cachyos.org>") recorded in the local DB —
+    #    so we touch ONLY what was actually converted, never the whole base
+    #    (nothing converted => nothing to do). UNATTENDED (--noconfirm).
+    #    A CachyOS-built package with no stock equivalent (e.g. a linux-cachyos
+    #    kernel) is auto-skipped and REPORTED — not auto-removed (could be the
+    #    running kernel); the user decides.
+    run pacman -Suuy --noconfirm
+
+    # Remove the CachyOS kernel — but ONLY once stock `linux` is confirmed present,
+    # so the box never loses its last bootable kernel. If stock linux is somehow
+    # missing, install it FIRST; if it still can't be installed, KEEP linux-cachyos.
+    # The limine-mkinitcpio-hook drops the boot entry automatically on removal.
+    # (linux-cachyos is CachyOS-exclusive, so the targeted revert below would
+    #  otherwise just report it as an orphan and leave it installed + running.)
+    if [[ $DRYRUN -eq 1 ]]; then
+      echo "+ (if linux-cachyos present) ensure stock linux installed, then:"
+      echo "+   pacman -Rns --noconfirm linux-cachyos linux-cachyos-headers"
+    elif pacman -Qq linux-cachyos >/dev/null 2>&1; then
+      if ! pacman -Qq linux >/dev/null 2>&1; then
+        echo "Stock 'linux' missing — installing it before removing the CachyOS kernel…"
+        run pacman -S --noconfirm --needed linux linux-headers
+      fi
+      if pacman -Qq linux >/dev/null 2>&1; then
+        run pacman -Rns --noconfirm linux-cachyos linux-cachyos-headers
+        echo "Removed the CachyOS kernel; stock 'linux' remains as the boot entry."
+        echo ">> REBOOT into stock 'linux' at the Limine menu to stop running the CachyOS kernel."
+      else
+        echo "WARNING: could not ensure stock 'linux' is installed —"
+        echo "         KEEPING linux-cachyos so the box stays bootable. Remove it manually"
+        echo "         only after a stock kernel is installed."
+      fi
+    fi
+
+    if [[ $DRYRUN -eq 1 ]]; then
+      echo "+ pacman -S --noconfirm <CachyOS-built pkgs (by Packager) that exist in stock>"
+      echo "+ (CachyOS-exclusive pkgs are reported, not reinstalled or removed)"
+    else
+      # CachyOS-built packages (by Packager), EXCLUDING the cachy keyring/mirrorlist
+      # packages themselves — those are removed in step 3, not reinstalled.
+      mapfile -t cachy_built < <(LC_ALL=C pacman -Qi 2>/dev/null \
+        | awk -F': ' '/^Name +:/{n=$2} /^Packager +:/{if ($2 ~ /CachyOS/) print n}' \
+        | grep -vxE 'cachyos-(keyring|mirrorlist|v3-mirrorlist|v4-mirrorlist)')
+      if [[ ${#cachy_built[@]} -eq 0 ]]; then
+        echo "No CachyOS-built packages remain — nothing to reinstall."
+      else
+        mapfile -t avail < <(pacman -Slq)
+        declare -A in_stock=(); for p in "${avail[@]}"; do in_stock["$p"]=1; done
+        reinstall=(); orphan=()
+        for p in "${cachy_built[@]}"; do
+          if [[ -n "${in_stock[$p]:-}" ]]; then reinstall+=("$p"); else orphan+=("$p"); fi
+        done
+        [[ ${#reinstall[@]} -gt 0 ]] && run pacman -S --noconfirm "${reinstall[@]}"
+        if [[ ${#orphan[@]} -gt 0 ]]; then
+          echo
+          echo "NOTE: ${#orphan[@]} CachyOS-built package(s) have no stock equivalent"
+          echo "      (CachyOS-exclusive) — left in place, review/remove manually:"
+          printf '        %s\n' "${orphan[@]}"
+        fi
+      fi
+    fi
+
+    # 3) remove the CachyOS keyring/mirrorlists + trust key (best-effort)
+    run sh -c "pacman -Rns --noconfirm cachyos-keyring cachyos-mirrorlist cachyos-v3-mirrorlist cachyos-v4-mirrorlist 2>/dev/null || true"
+    run sh -c "pacman-key --delete $CACHY_KEY 2>/dev/null || true"
+
+    # 4) clean up any %INSTALLED_DB% the CachyOS pacman stamped into the local DB
+    #    while enabled (otherwise stock pacman warns about it on every op forever).
+    strip_installed_db
+    echo "CachyOS disabled; native packages reverted to stock Arch builds."
+    ;;
+
+  *)
+    echo "Usage: $0 {detect|status|enable|disable} [--dry-run]" >&2
+    exit 1
+    ;;
+esac

os updates/cachyos-repo-switch/patch-servicespage.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+# patch-servicespage.sh — add the "CachyOS repositories" toggle to the caelestia
+# Settings -> Services page. Runs as root (installer, or the pacman hook after a
+# caelestia-shell upgrade reverts ServicesPage.qml). Idempotent.
+#
+#   1. install CachyRepoToggleRow.qml into nexus/common/ (untracked -> survives upgrades)
+#   2. insert `CachyRepoToggleRow {}` after the "Smart colour scheme" ToggleRow in
+#      ServicesPage.qml (same anchor the sudo toggle uses; both land together)
+#
+# NoSignal bakes both the component and the page insert into the pinned
+# nosignal-shell fork, so this patch is only for migration of older
+# stock-caelestia installs (run by the nosignal-update migration).
+set -eu
+
+SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+NEXUS=${NEXUS:-/etc/xdg/quickshell/caelestia/modules/nexus}
+COMMON="$NEXUS/common"
+PAGE="$NEXUS/pages/ServicesPage.qml"
+
+[ -f "$PAGE" ] || { echo "caelestia ServicesPage not found at $PAGE — nothing to patch"; exit 0; }
+
+# 1. component type (auto-discovered via `import qs.modules.nexus.common`)
+install -m 0644 "$SELF_DIR/CachyRepoToggleRow.qml" "$COMMON/CachyRepoToggleRow.qml"
+
+# 2. insert the row (idempotent)
+if grep -q 'CachyRepoToggleRow' "$PAGE"; then
+    echo ":: ServicesPage already has the CachyOS toggle"
+    exit 0
+fi
+grep -q 'smartScheme = checked' "$PAGE" || {
+    echo "WARNING: anchor (Smart colour scheme ToggleRow) not found in ServicesPage — skipping insert" >&2
+    exit 0
+}
+
+cp -n "$PAGE" "$PAGE.pre-nosignal-cachy" 2>/dev/null || true
+perl -0pi -e 's/(onToggled: GlobalConfig\.services\.smartScheme = checked\n\s*\})/$1\n\n        CachyRepoToggleRow {\n            Layout.fillWidth: true\n        }/' "$PAGE"
+
+if grep -q 'CachyRepoToggleRow' "$PAGE"; then
+    echo ":: patched ServicesPage (CachyOS toggle added)"
+else
+    echo "WARNING: ServicesPage insert did not take; restoring" >&2
+    [ -f "$PAGE.pre-nosignal-cachy" ] && cp "$PAGE.pre-nosignal-cachy" "$PAGE"
+    exit 1
+fi

os updates/caelestia-lock-faillock/README.md

@@ -0,0 +1,60 @@
+# caelestia-lock-faillock
+
+## Symptom
+User locked the screen; the Caelestia lock screen **would not accept the
+correct password**. Only recovery was a hard **reboot**.
+
+## Evidence (prior-boot journal, `journalctl --user -b -1`)
+```
+qs[…]:  PAM _pam_init_handlers: no default config other
+qs[…]:  pam_unix(passwd:auth): authentication failure; … user=q     (×3)
+qs[…]:  pam_faillock(passwd:auth): Consecutive login failures for user q account temporarily locked
+```
+(`qs` = Quickshell = the Caelestia shell hosting the lock.)
+
+## Root cause (lock-out mechanism — high confidence)
+- The lock authenticates via `PamContext { config: "passwd" }`
+  (`modules/lock/Pam.qml:14`) → the **`passwd` PAM service**.
+- On this build `/etc/pam.d/passwd` was extended to `auth include system-auth`,
+  and **system-auth runs `pam_faillock`**.
+- Failed unlocks are counted by faillock; past the threshold it **temporarily
+  locks the account**, after which *every* attempt — including the correct
+  password — is refused until the `/run/faillock` tally clears (reboot, or
+  `faillock --reset`). That is exactly the reboot-to-recover the user hit.
+
+## The initial failure trigger
+Two possible causes of the first failures (before faillock engaged):
+1. **Keyboard layout** on the lock surface (this install is **GB**; if the lock
+   comes up US-layout, `@ " # £ \ | ~` mistype → auth fails).
+2. **PAM stack init** (`no default config other`; module ordering under a
+   uid-1000 Quickshell process).
+
+## Fix
+1. **Stop the lock from locking the account.** Ship a dedicated, **faillock-free**
+   PAM service `/etc/pam.d/caelestia` (provided: `etc-pam.d-caelestia`;
+   installed by `install-caelestia-lock-pam.sh`, root).
+2. **Repoint the lock at it.** `modules/lock/Pam.qml`: `config: "passwd"` →
+   `config: "caelestia"`.
+
+A desktop lock must fail **closed-but-recoverable** (re-prompt), never lock the
+account such that the correct password is refused.
+
+## Builder integration (important)
+`modules/lock/Pam.qml` lives under `/etc/xdg/quickshell/caelestia`, which is
+re-applied by a pacman hook after every `caelestia-shell` upgrade. The `config:`
+repoint must therefore be added to NoSignal's **quickshell-patch + pacman-hook**
+mechanism — the same one that re-applies the Updates page, Additions page, and
+`NetworkConnection.qml` patches — as a 4th patched file. Do **not** hand-edit it
+in place (a shell upgrade would revert it). Expected behaviour: lock → wrong
+password ×5 (keeps re-prompting, account stays usable) → correct password
+unlocks; the lock-surface layout is GB.
+
+## Recovery for the user, no reboot
+TTY (Ctrl+Alt+F2) login → `sudo faillock --user "$USER" --reset` → back to the
+session (Ctrl+Alt+F1) and unlock. `Super+Alt+L` recovers a *hung* lock but does
+**not** clear a faillock lock.
+
+## Files
+- `etc-pam.d-caelestia` — proposed faillock-free PAM service.
+- `install-caelestia-lock-pam.sh` — idempotent installer (root).
+- `migrations/1781431200-caelestia-lock-pam.sh` — delegates to it.

os updates/caelestia-lock-faillock/etc-pam.d-caelestia

@@ -0,0 +1,20 @@
+#%PAM-1.0
+# Caelestia lock-screen authentication (NoSignal).
+#
+# Deliberately does NOT use pam_faillock: a desktop screen-lock must never lock
+# the user out of their OWN running session. With faillock in the path (the old
+# "passwd"->system-auth route), a few failed unlocks tripped a temporary account
+# lock that then refused the *correct* password until /run/faillock cleared on
+# reboot. See README.md.
+#
+# pam_unix verifies the password supplied via the PAM conversation (the lock UI)
+# using the setuid unix_chkpwd helper, so it works for the uid-1000 Quickshell
+# process. Add pam_systemd_home below if/when systemd-homed users are supported.
+#
+# F8a: deliberately NO `nullok` — a screen lock must never accept an empty
+# password. (Only changes behaviour for empty-password accounts, which are
+# correctly rejected; normal password auth is unaffected.)
+auth      required   pam_unix.so
+account   required   pam_unix.so
+password  required   pam_unix.so
+session   required   pam_unix.so

os updates/caelestia-lock-faillock/install-caelestia-lock-pam.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+# install-caelestia-lock-pam.sh — idempotent. REQUIRES ROOT.
+#
+# Thin wrapper kept for back-compat (older migrations / docs reference it).
+# The real work — DELIVER the faillock-free PAM service into the directory the
+# lock actually reads (shellDir/assets/pam.d/caelestia) AND repoint Pam.qml — is
+# done by patch-lock-pam.sh, which is also what the caelestia-shell pacman hook
+# runs after every upgrade. Delegating keeps a single source of truth and avoids
+# the old F1 bug where this script wrote /etc/pam.d/caelestia (a path PamContext
+# never reads), leaving the lock on the faillock'd assets/pam.d/passwd service.
+set -eu
+HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+
+if [ "$(id -u)" -ne 0 ]; then
+  echo "must run as root" >&2
+  exit 1
+fi
+
+exec sh "$HERE/patch-lock-pam.sh"

os updates/caelestia-lock-faillock/patch-lock-pam.sh

@@ -0,0 +1,72 @@
+#!/bin/sh
+# patch-lock-pam.sh — make the Caelestia lock screen use a faillock-free PAM
+# service. Two parts, both idempotent:
+#
+#   1. DELIVER the faillock-free `caelestia` service into the directory the lock
+#      actually reads — Quickshell.shellDir + "/assets/pam.d" — i.e.
+#      /etc/xdg/quickshell/caelestia/assets/pam.d/caelestia. (Placing it in
+#      /etc/pam.d/caelestia, which PamContext never reads, makes the lock
+#      fall through to assets/pam.d/passwd — still faillock'd — and reject even
+#      the correct password.)
+#   2. REPOINT the lock's PamContext at it: config: "passwd" -> "caelestia".
+#
+# Runs as root (via the installer, or the pacman hook after every caelestia-shell
+# upgrade, which restores the shell tree under /etc/xdg — so BOTH the asset file
+# and the repoint must be re-applied here each time, or an upgrade drops them).
+#
+# Symptom (before this fix): the lock screen rejects the CORRECT password; only a
+# reboot escapes. The stock lock authenticates via PamContext { config: "passwd",
+# configDirectory: shellDir + "/assets/pam.d" } -> assets/pam.d/passwd, which
+# calls pam_faillock; a few failed unlocks trip a temporary account lock that
+# then refuses every attempt (right password included) until /run/faillock clears.
+#
+# TARGET (Pam.qml) is overridable for testing the change against a copy; the
+# asset destination is derived from it (shellDir = TARGET/../../..).
+set -eu
+
+HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+SRC_PAM="$HERE/etc-pam.d-caelestia"           # the faillock-free service we ship
+
+TARGET=${TARGET:-/etc/xdg/quickshell/caelestia/modules/lock/Pam.qml}
+
+[ -f "$TARGET" ] || { echo "caelestia-shell lock not found at $TARGET — nothing to patch"; exit 0; }
+
+# shellDir = the caelestia shell root = three levels up from modules/lock/Pam.qml.
+SHELLDIR=$(CDPATH= cd -- "$(dirname -- "$TARGET")/../.." && pwd)
+ASSETS_PAMD="$SHELLDIR/assets/pam.d"
+
+# --- 1. deliver the faillock-free service where the lock reads it -------------
+if [ -f "$SRC_PAM" ]; then
+  install -d -m 0755 "$ASSETS_PAMD"
+  install -m 0644 "$SRC_PAM" "$ASSETS_PAMD/caelestia"
+  echo ":: installed $ASSETS_PAMD/caelestia (faillock-free lock auth)"
+else
+  echo "WARNING: source PAM service $SRC_PAM missing — cannot deliver the lock service." >&2
+fi
+
+# --- 2. repoint the lock's PamContext at it ----------------------------------
+# Already pointed at our service?
+if grep -q 'config:[[:space:]]*"caelestia"' "$TARGET"; then
+  echo ":: Pam.qml already points at the caelestia lock service"
+  exit 0
+fi
+
+# Only act if the stock "passwd" service is referenced.
+if ! grep -q 'config:[[:space:]]*"passwd"' "$TARGET"; then
+  echo "WARNING: Pam.qml does not reference config: \"passwd\" — upstream shape changed." >&2
+  echo "         Leaving it untouched; review the lock PamContext for the new" >&2
+  echo "         service name and update the regex in $(basename "$0")." >&2
+  exit 0
+fi
+
+cp -n "$TARGET" "$TARGET.pre-nosignal" 2>/dev/null || true
+
+# Repoint only the PAM service name; keep everything else as-is.
+sed -i 's/config:\([[:space:]]*\)"passwd"/config:\1"caelestia"/g' "$TARGET"
+
+if grep -q 'config:[[:space:]]*"caelestia"' "$TARGET"; then
+  echo ":: patched $TARGET (lock now uses the faillock-free caelestia PAM service)"
+else
+  echo "WARNING: patch did not apply — Pam.qml left untouched." >&2
+  exit 0
+fi

os updates/cheatsheet-keymap-path/README.md

@@ -0,0 +1,44 @@
+# cheatsheet-keymap-path
+
+User-level, no root.
+
+## Symptom / risk
+The Super+K cheatsheet is generated by `nosignal-keybinds-gen` from the keymap
+markdown. Its source-resolution order is:
+
+```
+$1 arg  →  $NOSIGNAL_KEYMAP_MD  →  $HOME/Downloads/NoSignal-keybindings.md
+                                 →  $HOME/.local/share/nosignal/NoSignal-keybindings.md
+```
+
+`~/Downloads` is checked **before** the canonical layer copy. Today that copy is
+absent so it falls through and works — but any stale `NoSignal-keybindings.md`
+left in `~/Downloads` (a common scratch location) would **silently shadow** the
+real keymap, so the cheatsheet would show wrong/old keys. The `nosignal-keybinds`
+header comment also still says the doc lives in `~/Downloads`.
+
+## Fix
+- `nosignal-keybinds-gen`: drop the `~/Downloads` candidate so the canonical
+  `~/.local/share/nosignal/NoSignal-keybindings.md` is the only implicit source.
+  The explicit `$1` arg and `$NOSIGNAL_KEYMAP_MD` override are kept for dev use.
+- `nosignal-keybinds`: correct the header comment to point at the canonical path.
+
+`fix-cheatsheet-keymap-path.sh` patches the on-system scripts idempotently
+(awk for the candidate line + a sanity `sh -n` before saving; sed for the
+comment), then refreshes the cached `keybinds.list`. No-op if already fixed.
+
+## Builder integration
+Make the canonical change in the layer's `nosignal-keybinds-gen` and
+`nosignal-keybinds` sources directly; this component is the equivalent patch for
+an already-installed system.
+
+## Verify
+```
+grep -n 'NoSignal-keybindings.md' "$(readlink -f "$(command -v nosignal-keybinds-gen)")"
+# only the ~/.local/share/nosignal path should remain (no ~/Downloads)
+nosignal-keybinds-gen | head -3        # still generates the keymap
+```
+
+## Files
+- `fix-cheatsheet-keymap-path.sh` — idempotent patcher.
+- `migrations/1781445600-cheatsheet-keymap-path.sh` — delegates to it.

os updates/cheatsheet-keymap-path/fix-cheatsheet-keymap-path.sh

@@ -0,0 +1,51 @@
+#!/bin/sh
+# fix-cheatsheet-keymap-path.sh — idempotent. User-level (no root).
+#
+# The Super+K cheatsheet generator resolves its keymap doc from
+# $HOME/Downloads/NoSignal-keybindings.md *before* the canonical
+# $HOME/.local/share/nosignal/NoSignal-keybindings.md. A stale copy left in
+# ~/Downloads would silently shadow the real keymap. The nosignal-keybinds
+# header comment also still claims the doc lives in ~/Downloads.
+#
+# Fix: drop the ~/Downloads candidate from nosignal-keybinds-gen (the $1 arg and
+# $NOSIGNAL_KEYMAP_MD env override remain for dev use), and correct the comment.
+# Edits the real files behind the ~/.local/bin symlinks. Re-runnable.
+set -eu
+
+resolve() { command -v "$1" >/dev/null 2>&1 && readlink -f -- "$(command -v "$1")"; }
+GEN=$(resolve nosignal-keybinds-gen || true)
+NK=$(resolve nosignal-keybinds || true)
+
+# 1. nosignal-keybinds-gen: remove the ~/Downloads candidate line.
+if [ -n "${GEN:-}" ] && grep -q 'Downloads/NoSignal-keybindings.md' "$GEN"; then
+  tmp=$(mktemp)
+  awk '
+    /for cand in "\$HOME\/Downloads\/NoSignal-keybindings\.md"/ { print "  for cand in \\"; next }
+    { print }
+  ' "$GEN" > "$tmp"
+  # sanity: canonical path still present, Downloads gone, still parses
+  if grep -q '\.local/share/nosignal/NoSignal-keybindings.md' "$tmp" \
+     && ! grep -q 'Downloads/NoSignal-keybindings.md' "$tmp" \
+     && sh -n "$tmp" 2>/dev/null; then
+    cat "$tmp" > "$GEN"; echo "patched: $GEN (dropped ~/Downloads candidate)"
+  else
+    echo "WARN: gen rewrite failed sanity — left $GEN untouched" >&2
+  fi
+  rm -f "$tmp"
+else
+  echo "nosignal-keybinds-gen already canonical (or not found) — skipped"
+fi
+
+# 2. nosignal-keybinds: fix the header comment path.
+if [ -n "${NK:-}" ] && grep -q '~/Downloads/NoSignal-keybindings.md' "$NK"; then
+  sed -i 's#~/Downloads/NoSignal-keybindings.md#~/.local/share/nosignal/NoSignal-keybindings.md#g' "$NK"
+  echo "patched: $NK (comment path corrected)"
+else
+  echo "nosignal-keybinds comment already correct (or not found) — skipped"
+fi
+
+# refresh the cached cheatsheet list so the change takes effect immediately
+[ -n "${GEN:-}" ] && "$GEN" > "$HOME/.local/share/nosignal/keybinds.list.tmp" 2>/dev/null \
+  && mv "$HOME/.local/share/nosignal/keybinds.list.tmp" "$HOME/.local/share/nosignal/keybinds.list" 2>/dev/null || true
+
+echo "cheatsheet-keymap-path: ok"

os updates/cheatsheet-tidy/README.md

@@ -0,0 +1,54 @@
+# cheatsheet-tidy — Super+K panel shows key + action only, fitted
+
+Reworks the cheatsheet output so the Super+K panel stays compact.
+
+## Symptom
+
+The Super+K panel was cluttered and overflowed: a `[Section]` tag column
+ate ~20 chars of every line, actions carried doc-provenance notes like
+"(Omarchy key)", and lines ran up to 200 chars in a
+72-char fuzzel panel — long actions were simply cut off mid-word.
+
+## Fix
+
+Full replacements of the two keybinds-help scripts (kept small on purpose —
+the markdown stays the single source of truth and is untouched):
+
+- **`nosignal-keybinds-gen`** — output is now two columns, key + action:
+  - section tag column dropped (the markdown keeps its sections);
+  - doc-only parentheticals stripped from actions — anything matching
+    provenance patterns (`Omarchy`, `change N`, `(was …`, `moved`,
+    `NoSignal`, `dev/debug`); meaningful ones like
+    "(logout / shutdown / reboot)" and "(alias, old key)" stay;
+  - actions ellipsis-truncated to `$NOSIGNAL_KEYS_COLS` (default 98) so
+    every line fits the panel.
+- **`nosignal-keybinds`** — fuzzel `--width` 72 → 100, in sync with the
+  generator budget (98 = 100 − margin). Comment in each file points at
+  the other.
+
+Result on the current keymap: 108 rows, all ≤ 98 chars, 6 lightly
+ellipsis-truncated, none cut off by the panel.
+
+The installer also refreshes the flat layer-root copies of both scripts
+so a re-run of `install-keybinds-help.sh` cannot
+regress the panel.
+
+## Packaging
+
+Replace the two scripts in the keybinds-help source with
+these versions — this component then becomes part of keybinds-help rather
+than a permanent overlay. No package/config delta, no keybind changes.
+
+## Test
+
+1. `Super+K` → every visible line is `KEY  action`, no `[Section]`
+   tags, no "(Omarchy key)"-style noise, no line wider than the panel.
+2. Type to filter (e.g. "workspace") — still searchable.
+3. Select a line → still copies the shortcut to the clipboard.
+4. `nosignal-keybinds-gen | awk '{print length($0)}' | sort -rn | head -1`
+   ≤ 98.
+
+## Notes
+
+Cached list regenerated; max line length 98/98;
+row count identical before/after (108).

os updates/cheatsheet-tidy/install-cheatsheet-tidy.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+# install-cheatsheet-tidy.sh — tidy the Super+K cheatsheet panel: key +
+# action only, every line fits the panel.
+#
+# Ships full replacements of the keybinds-help scripts:
+#   - nosignal-keybinds-gen  -> ~/.local/bin/  (no tag column, strips doc-only
+#     parentheticals, truncates actions to the panel budget)
+#   - nosignal-keybinds      -> ~/.local/bin/  (fuzzel width 72 -> 100, kept in
+#     sync with the generator budget)
+#
+# Also refreshes the layer-root source copies when present, so a
+# re-run of install-keybinds-help.sh cannot regress the panel.
+# Safe to re-run (idempotent). No sudo needed.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+BIN="$HOME/.local/bin"
+ROOT=$(dirname -- "$SRC")    # the layer root when run from the layer tree
+
+mkdir -p "$BIN"
+install -m 0755 "$SRC/nosignal-keybinds-gen" "$BIN/nosignal-keybinds-gen"
+install -m 0755 "$SRC/nosignal-keybinds"     "$BIN/nosignal-keybinds"
+echo ":: installed tidied cheatsheet scripts -> $BIN"
+
+# Keep the keybinds-help source copies in step (they live flat at the layer root).
+# Check both the tree this component sits in and the installed layer location,
+# so running from a handoff folder still fixes the on-system layer copies.
+for d in "$ROOT" "$HOME/.local/share/nosignal"; do
+  for f in nosignal-keybinds-gen nosignal-keybinds; do
+    if [ -f "$d/$f" ] && ! cmp -s "$SRC/$f" "$d/$f"; then
+      install -m 0755 "$SRC/$f" "$d/$f"
+      echo ":: refreshed layer copy -> $d/$f"
+    fi
+  done
+done
+
+# Refresh the cached list so the next Super+K shows the new format at once.
+"$BIN/nosignal-keybinds-gen" > "$HOME/.local/share/nosignal/keybinds.list" 2>/dev/null || true
+
+echo "Done. Super+K now shows key + action only, fitted to the panel."

os updates/cheatsheet-tidy/nosignal-keybinds

@@ -0,0 +1,46 @@
+#!/bin/sh
+# nosignal-keybinds — searchable on-screen keybinding cheatsheet for NoSignal.
+# The keymap is NOT stored here: it is generated from the markdown doc by
+# nosignal-keybinds-gen on every launch, so the cheatsheet can never drift from
+# ~/Downloads/NoSignal-keybindings.md. The generated list is cached so the help
+# still works if the markdown is temporarily missing.
+#
+# Read-only: typing filters the list; selecting a line copies that shortcut to
+# the clipboard (if wl-copy is present) and never executes anything.
+#
+# --width 100 must stay in sync with the generator's $NOSIGNAL_KEYS_COLS default
+# (98 = 100 minus margin) — the generator truncates actions to that budget so
+# every line fits the panel.
+set -u
+
+DATA_DIR="$HOME/.local/share/nosignal"
+LIST="$DATA_DIR/keybinds.list"
+mkdir -p "$DATA_DIR"
+
+# Find the generator next to this script (no PATH dependency), else fall back.
+SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+GEN="$SELF_DIR/nosignal-keybinds-gen"
+[ -x "$GEN" ] || GEN="nosignal-keybinds-gen"
+
+# Regenerate from the markdown when available; otherwise keep the cached list.
+if "$GEN" > "$LIST.tmp" 2>/dev/null && [ -s "$LIST.tmp" ]; then
+  mv "$LIST.tmp" "$LIST"
+else
+  rm -f "$LIST.tmp"
+fi
+
+if [ ! -s "$LIST" ]; then
+  command -v notify-send >/dev/null 2>&1 &&
+    notify-send -u critical "NoSignal keys" "Cheatsheet unavailable — keymap markdown not found."
+  exit 1
+fi
+
+selection=$(fuzzel --dmenu \
+  --prompt "keys> " \
+  --width 100 \
+  --lines 20 \
+  --no-icons < "$LIST" 2>/dev/null)
+
+if [ -n "${selection:-}" ] && command -v wl-copy >/dev/null 2>&1; then
+  printf '%s' "$selection" | wl-copy
+fi

os updates/cheatsheet-tidy/nosignal-keybinds-gen

@@ -0,0 +1,82 @@
+#!/bin/sh
+# nosignal-keybinds-gen — parse the NoSignal keymap markdown and emit display-ready
+# cheatsheet lines on stdout. The markdown is the SINGLE SOURCE OF TRUTH; the
+# on-screen help (nosignal-keybinds) is always derived from it, so the two cannot
+# drift. Reads every "| keys | action |" table row except the "Source map"
+# section.
+#
+# Panel format: two columns only — key, action — sized so every
+# line fits the fuzzel panel:
+#   - no section tag column (visual noise in the popup; the markdown keeps it)
+#   - doc-only parentheticals are stripped from actions: provenance notes like
+#     "(Omarchy key)", "(was hover-only)" belong in the doc,
+#     not the panel. Meaningful ones ("(logout / shutdown / reboot)") stay.
+#   - actions are ellipsis-truncated so no line exceeds $NOSIGNAL_KEYS_COLS
+#     characters (default 98 — the nosignal-keybinds fuzzel width of 100 minus
+#     margin). Keep the two in sync.
+#
+# Usage: nosignal-keybinds-gen [path-to-markdown]
+#   Source resolution order: $1 arg → $NOSIGNAL_KEYMAP_MD → known locations.
+set -eu
+
+MD="${1:-${NOSIGNAL_KEYMAP_MD:-}}"
+if [ -z "$MD" ]; then
+  for cand in "$HOME/Downloads/NoSignal-keybindings.md" \
+              "$HOME/.local/share/nosignal/NoSignal-keybindings.md"; do
+    [ -f "$cand" ] && { MD="$cand"; break; }
+  done
+fi
+[ -n "${MD:-}" ] && [ -f "$MD" ] || {
+  echo "nosignal-keybinds-gen: keymap markdown not found (set \$NOSIGNAL_KEYMAP_MD)" >&2
+  exit 1
+}
+
+awk -v cols="${NOSIGNAL_KEYS_COLS:-98}" '
+function trim(s){ gsub(/\*\*/, "", s); gsub(/^[ \t]+|[ \t]+$/, "", s); return s }
+
+# ---- section headings -------------------------------------------------------
+/^## / {
+  insrc = (substr($0, 4) ~ /^Source map/)     # not keybinds: skip the section
+  next
+}
+insrc { next }
+
+# ---- table rows -------------------------------------------------------------
+/^\|/ {
+  if ($0 ~ /^[|: -]+$/) next                   # markdown separator row
+  n = split($0, c, "|")                        # c[1] is empty (text before first |)
+  keys = c[2]; gsub(/`/, "", keys); keys = trim(keys)
+  if (keys == "" || keys == "Keys" || keys == "File") next
+  desc = ""
+  for (i = 3; i < n; i++) {                     # join any remaining columns
+    cell = c[i]; gsub(/`/, "", cell); cell = trim(cell)
+    if (cell != "") desc = (desc == "") ? cell : desc " — " cell
+  }
+
+  # strip doc-only parentheticals (provenance/changelog), keep the rest
+  out = ""; rest = desc
+  while (match(rest, /\([^()]*\)/)) {
+    pre = substr(rest, 1, RSTART - 1)
+    par = substr(rest, RSTART, RLENGTH)
+    rest = substr(rest, RSTART + RLENGTH)
+    if (par ~ /Omarchy|change [0-9]+|^\(was |moved |NoSignal|dev\/debug/) par = ""
+    out = out pre par
+  }
+  desc = out rest
+  gsub(/  +/, " ", desc)                        # collapse gaps left by stripping
+  gsub(/[ \t]+$/, "", desc)
+  sub(/ — $/, "", desc)
+
+  KEY[++r] = keys; DSC[r] = desc
+  if (length(keys) > wk) wk = length(keys)
+}
+
+END {
+  budget = cols - wk - 2                        # action space after the key column
+  for (i = 1; i <= r; i++) {
+    d = DSC[i]
+    if (length(d) > budget) d = substr(d, 1, budget - 1) "…"
+    printf "%-*s  %s\n", wk, KEY[i], d
+  }
+}
+' "$MD"

os updates/cliamp-music/README.md

@@ -0,0 +1,57 @@
+# cliamp-music — CLIAmp as the default music player
+
+Adds a default music player — NoSignal previously had none.
+
+## What
+
+[CLIAmp](https://github.com/search?q=cliamp) — "a retro terminal music
+player inspired by Winamp 2.x" — is what Omarchy ships for terminal
+music (their `omarchy-launch-or-focus-tui cliamp` bind), and it is
+prebuilt in the `[omarchy]` pacman repo NoSignal already carries
+(v1.57.0 at time of writing; deps pull in ffmpeg and yt-dlp).
+
+- **Package:** `cliamp` from `[omarchy]` (repo install, no AUR build).
+- **Default player:** `cliamp.desktop` (launches in kitty, class
+  `cliamp`) + `xdg-mime default` for 12 common audio types, mirroring
+  the style of omarchy's `install/config/mimetypes.sh` (which sets no
+  audio defaults itself). Opening an audio file anywhere now starts
+  CLIAmp.
+- **Keybind:** `Super+M` → launch-or-focus CLIAmp, floating 1100×700
+  (same shape as the other NoSignal TUI tools). Before this change both
+  `Super+M` and `Super+Shift+M` toggled the shell's music panel (an
+  MPRIS controller, not a player); the panel keeps `Super+Shift+M`.
+  Launch-or-focus is inlined (`hyprctl dispatch focuswindow … || kitty …`)
+  since NoSignal does not ship omarchy's helper — note `hyprctl` exits 0
+  even when no window matches, so the check greps for `ok`.
+- **Keymap doc:** `Super+M` row updated (the Super+K cheatsheet
+  regenerates from it on next open).
+
+## Files
+
+| File | Role |
+|------|------|
+| `install-cliamp-music.sh` | idempotent installer — package (sudo), desktop entry, MIME defaults, marked bind block, keymap doc row |
+| `cliamp.desktop` | desktop entry: `kitty --class cliamp -e cliamp %F` + audio MimeType list |
+| `hyprland-cliamp.conf` | `# >>> cliamp music player >>>` marked block (float rules + Super+M), appended to hypr-user.conf |
+
+## Packaging
+
+- Add `cliamp` to the package list (from `[omarchy]`).
+- Bake the desktop entry, the MIME defaults (skeleton
+  `~/.config/mimeapps.list`), the marked block (verbatim, markers
+  included — the installer greps for it), and the keymap doc row.
+
+## Test
+
+1. `Super+M` → CLIAmp opens floating; `Super+M` again focuses it
+   (no second instance). `Super+Shift+M` still toggles the music panel.
+2. Open an `.mp3`/`.flac` from the file manager → opens in CLIAmp.
+3. `xdg-mime query default audio/mpeg` → `cliamp.desktop`.
+4. Super+K lists `Super+M  Music player — CLIAmp…`.
+
+## Notes
+
+cliamp 1.57.0-1 installed; audio/mpeg and audio/flac
+default to cliamp.desktop; runtime binds confirm Super+M →
+launch-or-focus CLIAmp and Super+Shift+M → music panel; keymap doc row
+present.

os updates/cliamp-music/cliamp.desktop

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Type=Application
+Name=CLIAmp
+GenericName=Music Player
+Comment=Retro terminal music player inspired by Winamp 2.x
+Exec=kitty --class cliamp -e cliamp %F
+Icon=audio-x-generic
+Terminal=false
+Categories=AudioVideo;Audio;Player;
+MimeType=audio/mpeg;audio/mp4;audio/x-m4a;audio/aac;audio/flac;audio/x-flac;audio/ogg;audio/x-vorbis+ogg;audio/x-opus+ogg;audio/wav;audio/x-wav;audio/webm;

os updates/cliamp-music/hyprland-cliamp.conf

@@ -0,0 +1,9 @@
+# >>> cliamp music player >>>
+# CLIAmp (Winamp-style TUI, [omarchy] repo) is the default music player.
+# Super+M launches/focuses it (was a second alias for the music panel toggle —
+# the panel keeps Super+Shift+M). Floats like the other NoSignal TUI tools.
+windowrule = float true, match:class cliamp
+windowrule = size 1100 700, match:class cliamp
+unbind = Super, M
+bind = Super, M, exec, sh -c 'hyprctl dispatch focuswindow "class:^cliamp$" | grep -q ok || kitty --class cliamp -e cliamp'
+# <<< cliamp music player <<<

os updates/cliamp-music/install-cliamp-music.sh

@@ -0,0 +1,61 @@
+#!/bin/sh
+# install-cliamp-music.sh — CLIAmp as the default music player.
+#
+#   - cliamp                 -> installed from the [omarchy] repo (sudo)
+#   - cliamp.desktop         -> ~/.local/share/applications (launch in kitty)
+#   - XDG MIME defaults      -> audio/* opens CLIAmp (omarchy mimetypes style)
+#   - Super+M                -> launch-or-focus CLIAmp, floating
+#                               (Super+Shift+M keeps the shell music panel)
+#   - keymap doc             -> Super+M row updated
+#
+# Safe to re-run (idempotent). Needs sudo only for the package install.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+APPS="$HOME/.local/share/applications"
+HYPRUSER="$HOME/.config/caelestia/hypr-user.conf"
+KEYMAP="$HOME/.local/share/nosignal/NoSignal-keybindings.md"
+
+# 1. Package (prebuilt in the [omarchy] repo — no AUR build).
+if ! command -v cliamp >/dev/null 2>&1; then
+  sudo pacman -S --needed --noconfirm cliamp
+fi
+
+# 2. Desktop entry (ours wins over any packaged one — same desktop id).
+mkdir -p "$APPS"
+install -m 0644 "$SRC/cliamp.desktop" "$APPS/cliamp.desktop"
+command -v update-desktop-database >/dev/null 2>&1 && update-desktop-database "$APPS" || true
+
+# 3. Default player for audio files (mirrors omarchy's mimetypes.sh style).
+if command -v xdg-mime >/dev/null 2>&1; then
+  for m in audio/mpeg audio/mp4 audio/x-m4a audio/aac audio/flac audio/x-flac \
+           audio/ogg audio/x-vorbis+ogg audio/x-opus+ogg audio/wav audio/x-wav \
+           audio/webm; do
+    xdg-mime default cliamp.desktop "$m"
+  done
+  echo ":: audio/* now opens CLIAmp"
+fi
+
+# 4. Super+M bind + float rule (marked block, end of hypr-user.conf).
+if [ -f "$HYPRUSER" ]; then
+  if grep -q '>>> cliamp music player >>>' "$HYPRUSER"; then
+    echo ":: hypr-user.conf already has the cliamp block"
+  else
+    printf '\n' >> "$HYPRUSER"
+    cat "$SRC/hyprland-cliamp.conf" >> "$HYPRUSER"
+    echo ":: Super+M -> CLIAmp (block appended to hypr-user.conf)"
+  fi
+  command -v hyprctl >/dev/null 2>&1 && hyprctl reload >/dev/null 2>&1 || true
+else
+  echo "NOTE: $HYPRUSER not found — append hyprland-cliamp.conf to your Hyprland user config."
+fi
+
+# 5. Keymap doc (single source of truth for the Super+K cheatsheet).
+if [ -f "$KEYMAP" ] && ! grep -q 'CLIAmp' "$KEYMAP"; then
+  sed -i 's#^| `Super+M` | Music (alias) |#| `Super+M` | Music player — CLIAmp, floating (default for audio files) |#' "$KEYMAP"
+  grep -q 'CLIAmp' "$KEYMAP" \
+    && echo ":: keymap doc updated (Super+M row)" \
+    || echo "NOTE: keymap doc row not found — document Super+M manually in $KEYMAP"
+fi
+
+echo "Done. Super+M opens CLIAmp; audio files open in it by default."

os updates/dashboard-key/README.md

@@ -0,0 +1,38 @@
+# dashboard-key — Super+D opens the dashboard / calendar
+
+caelestia's calendar lives in its **dashboard**, which by default opens only by
+**hovering the top screen edge** (`Config.dashboard.showOnHover` +
+`modules/drawers/Interactions.qml`). Easy to miss and fiddly. This adds a
+keybind.
+
+| Key | Action |
+|-----|--------|
+| `Super+D` | Toggle the dashboard (calendar + media/performance widgets) |
+| `Super+Shift+D` | Communication special workspace (moved here from `Super+D`) |
+
+`Super+D` was caelestia's `$kbCommunication` (communication scratchpad
+workspace). To avoid losing it, it moves to `Super+Shift+D`. The dashboard is
+toggled via the drawer IPC (`qs -c caelestia ipc call drawers toggle
+dashboard`) — no shell edits, no package, works offline.
+
+## Files
+
+- binds appended to `~/.config/caelestia/hypr-user.conf` (idempotent marked block)
+
+## Install
+
+```sh
+sh install-dashboard-key.sh
+```
+
+## Builder notes — fold into omarchy-keys
+
+Add to `omarchy-keys/omarchy-keys-user.conf`:
+```
+unbind = Super, D
+bind = Super, D, exec, qs -c caelestia ipc call drawers toggle dashboard
+bind = Super+Shift, D, exec, caelestia toggle communication
+```
+And document `Super+D` (dashboard) + `Super+Shift+D` (communication) in
+`NoSignal-keybindings.md`. The bar's `calendar_month` icon stays decorative
+(making it clickable needs a shell-level change, deliberately avoided).

os updates/dashboard-key/install-dashboard-key.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+# install-dashboard-key.sh — Super+D toggles the dashboard (calendar + widgets).
+# Idempotent.
+#
+# The dashboard (which holds caelestia's calendar) was reachable only by
+# hovering the top screen edge. This adds a keybind. Super+D was caelestia's
+# `$kbCommunication` (communication special-workspace toggle), so that moves to
+# Super+Shift+D — nothing is lost.
+set -eu
+
+HYPRUSER="$HOME/.config/caelestia/hypr-user.conf"
+MARK='dashboard-key: Super+D dashboard'
+
+if [ ! -f "$HYPRUSER" ]; then
+  echo "NOTE: $HYPRUSER not found — add the Super+D bind manually."
+elif grep -qF "$MARK" "$HYPRUSER"; then
+  echo ":: Super+D already bound in $HYPRUSER"
+else
+  cat >> "$HYPRUSER" <<'EOF'
+
+# >>> dashboard-key: Super+D dashboard >>>
+# Super+D toggles the dashboard (calendar + media/perf widgets), previously
+# reachable only by hovering the top edge. Super+D was the communication
+# special-workspace toggle ($kbCommunication) — moved to Super+Shift+D.
+unbind = Super, D
+bind = Super, D, exec, qs -c caelestia ipc call drawers toggle dashboard   # Dashboard / calendar
+bind = Super+Shift, D, exec, caelestia toggle communication                # Communication workspace (moved from Super+D)
+# <<< dashboard-key: Super+D dashboard <<<
+EOF
+  echo ":: bound Super+D -> dashboard; communication -> Super+Shift+D"
+fi
+
+if command -v hyprctl >/dev/null 2>&1 && hyprctl version >/dev/null 2>&1; then
+  hyprctl reload >/dev/null 2>&1 && echo ":: reloaded Hyprland"
+fi
+
+echo "Done. Super+D opens the calendar/dashboard; Super+Shift+D = communication."

os updates/deckshift-login/README.md

@@ -0,0 +1,140 @@
+# deckshift-login — full-session DeckShift gaming, password at boot
+
+Keeps DeckShift's gaming model exactly as designed — a **dedicated, full
+gamescope session** (`gamescope-session-steam-nm`), switched by rewriting
+SDDM's autologin session and restarting SDDM — but fixes the login behaviour:
+
+| Event | Stock DeckShift | With this component |
+|-------|-----------------|---------------------|
+| Cold boot | autologin, no password ever | **normal SDDM password login** |
+| Desktop → Gaming (`Super+Shift+S`) | autologin into gaming session | same (one-shot autologin) |
+| Gaming → Desktop (`Super+Shift+R` / Steam > Exit to Desktop) | autologin back to desktop | same (one-shot autologin) |
+| SDDM crash / manual restart | autologin | password login |
+
+## How it works
+
+Stock DeckShift keeps a **permanent** `[Autologin]` drop-in
+(`/etc/sddm.conf.d/zz-gaming-session.conf`, `Relogin=true`) and its
+`gaming-session-switch` helper just flips the `Session=` line — so the box
+never shows a password screen again.
+
+This component makes the autologin **one-shot**:
+
+- `gaming-session-switch` (drop-in replacement, same path + interface, so
+  DeckShift's `switch-to-gaming` / `switch-to-desktop` / `os-session-select`
+  and the existing sudoers rule keep working) writes the autologin drop-in
+  fresh on each switch (`Relogin=false`) **and arms a marker in `/run`**.
+- `sddm-autologin-gate` runs as `ExecStartPre=` on `sddm.service` (systemd
+  drop-in): marker present → consume it, keep the autologin for that single
+  restart; marker absent (cold boot, crash, manual restart — `/run` is tmpfs)
+  → delete the autologin drop-in, password greeter shows.
+
+Also adds the `Super+Shift+S → /usr/local/bin/switch-to-gaming` Hyprland bind:
+DeckShift appends its bind to `~/.config/hypr/bindings.conf`, an **Omarchy**
+path that doesn't exist on caelestia, so on this system DeckShift silently
+skips the keybind — this component adds it to
+`~/.config/caelestia/hypr-user.conf` instead (replacing caelestia's
+`Super+Shift+S` screenshot-freeze; region shots stay on
+Print / Shift+Print / Super+Shift+Alt+S). No exit bind is needed on the
+desktop side: exiting happens inside the gaming session (DeckShift's evdev
+keybind monitor handles `Super+Shift+R`, and Steam > Power > Exit to Desktop
+calls `/usr/lib/os-session-select`).
+
+## Files
+
+```
+gaming-session-switch        -> /usr/local/bin/   (replaces DeckShift's; root 755)
+switch-to-desktop            -> /usr/local/bin/   (replaces DeckShift's; root 755)
+sddm-autologin-gate          -> /usr/local/bin/   (root 755)
+deckshift-autologin-gate.conf-> /etc/systemd/system/sddm.service.d/
+os-session-select            -> /usr/lib/         (DeckShift's original, restored
+                                                   if something overwrote it)
+install-deckshift-login.sh      idempotent installer (needs sudo)
+```
+
+**`deckshift.sh` itself is never modified** — this component only overlays
+files that deckshift.sh has already installed (same paths, same interfaces,
+the existing sudoers rules keep applying). That is the contract: the ISO
+mimics Omarchy's SDDM setup, stock DeckShift installs onto it unchanged, and
+this overlay is applied after it.
+
+**Why `switch-to-desktop` is overlaid too**: DeckShift's original pkills gamescope *before* its final
+`systemctl restart sddm`. Killing gamescope ends the login session, and
+logind then kills the session's processes — including the script itself (it
+runs inside the gaming session, launched by the keybind monitor) — so the
+restart never executes. Stock DeckShift survives this because its permanent
+`Relogin=true` autologin re-logs the user in anyway; with one-shot autologin
+it stranded the user at the greeter. The overlay keeps all of DeckShift's
+cleanup (power-profile restore, suspend unmask, Bluetooth, portal marker,
+Steam shutdown) but queues the SDDM restart as a detached root job — the
+same pattern DeckShift's own `os-session-select` uses, which is why Steam's
+"Exit to Desktop" worked all along — and lets the service stop tear down
+gamescope.
+
+The installer also **removes the withdrawn nested gaming-mode experiment**
+(`nosignal-gaming-mode*` scripts, its launcher entry, and its
+`# >>> gaming-mode (nested) >>>` bind block) if the box ever had it.
+
+## Install (opt-in, post-install — in this order)
+
+```sh
+# 1. DeckShift first (gaming session, switch scripts, sudoers, keybind monitor)
+sh ~/deckshift/deckshift.sh
+# 2. then the login fix
+sh ~/.local/share/nosignal/deckshift-login/install-deckshift-login.sh
+```
+
+**Re-run step 2 after any re-run of `deckshift.sh`** — deckshift.sh restores
+its permanent-autologin `gaming-session-switch` and recreates the standing
+autologin drop-in.
+
+## Test
+
+1. Reboot → SDDM **password** prompt (session: "Hyprland (uwsm-managed)").
+2. `Super+Shift+S` → screen flickers (VT switch + SDDM restart) → Steam Big
+   Picture in a full gamescope session. No password asked.
+3. Steam > Power > Exit to Desktop (or `Super+Shift+R`) → back to the Hyprland
+   desktop. No password asked.
+4. Reboot again → password prompt is back (the switch autologin didn't stick).
+5. `sudo systemctl restart sddm` from the desktop → password prompt (gate
+   cleans up; nothing autologins outside a real switch).
+
+## Known quirks
+
+- SDDM remembers the **last session** per user, so after a reboot from inside
+  Gaming Mode the greeter may preselect "Gaming Mode (ChimeraOS)" — pick
+  "Hyprland (uwsm-managed)" from the session menu.
+- The switch necessarily restarts the whole graphical session: open desktop
+  apps close when entering Gaming Mode. That is inherent to DeckShift's
+  full-session design (and why it works better for games than a nested
+  window: gamescope owns the display, HDR/VRR/input pass through cleanly).
+
+## Builder notes — how to put this in the ISO (opt-in, NOT pre-enabled)
+
+1. **Bake the Omarchy-style SDDM setup — REQUIRED.** DeckShift's
+   switching is built on SDDM; the ISO must boot to an SDDM password greeter
+   with `hyprland-uwsm` as the default session and **no autologin baked**.
+2. Copy `deckshift-login/` into the layer (lands at
+   `~/.local/share/nosignal/deckshift-login/`) + the copy-list line in
+   `nosignal-update/install-nosignal-update.sh`:
+   ```sh
+   [ -d "$SRC/deckshift-login" ] && cp -a "$SRC/deckshift-login" "$DEST/"
+   ```
+3. Ship migration `1781395200-deckshift-login.sh` as-is — it is
+   **conditional**: it only (re-)applies where DeckShift is actually installed
+   (`/usr/local/bin/switch-to-gaming` exists), so `nosignal-update` keeps
+   opted-in boxes patched and is a no-op everywhere else.
+4. Do **NOT** run deckshift.sh or this installer at build time, do **NOT**
+   bake the `# >>> deckshift gaming keys >>>` block into the shipped
+   `hypr-user.conf`, and do **NOT** bake steam/gamescope/DeckShift packages.
+   Gaming stays opt-in: the user runs `deckshift.sh` then this installer.
+5. Prerequisites already in the base: `[multilib]` + the `omarchy-*` shims
+   (gaming-enablement) — deckshift.sh depends on both.
+6. Drop the withdrawn `gaming-mode/` (nested) component entirely if any copy
+   is still in the builder tree; this component supersedes it.
+7. Document in `NoSignal-keybindings.md`: `Super+Shift+S` = Gaming Mode
+   **only after opting in** (until then it stays caelestia's
+   screenshot-freeze); `Super+Shift+R` works inside Gaming Mode only.
+8. Verify on a clean VM: install → password login; run deckshift.sh + this
+   installer → switch in/out of Gaming Mode with no password; reboot →
+   password login is back.

os updates/deckshift-login/deckshift-autologin-gate.conf

@@ -0,0 +1,7 @@
+# /etc/systemd/system/sddm.service.d/deckshift-autologin-gate.conf
+# One-shot autologin gate for DeckShift session switching: keeps the SDDM
+# autologin drop-in only when a desktop<->gaming switch armed it (marker in
+# /run); every other SDDM start (cold boot included) shows the password
+# greeter. See /usr/local/bin/sddm-autologin-gate.
+[Service]
+ExecStartPre=/usr/local/bin/sddm-autologin-gate

os updates/deckshift-login/gaming-session-switch

@@ -0,0 +1,49 @@
+#!/bin/bash
+# gaming-session-switch — DeckShift-compatible session-switch helper, patched
+# for password-at-boot. Same path + same {gaming|desktop} interface as
+# DeckShift's original (the existing sudoers rule and switch-to-gaming /
+# switch-to-desktop / os-session-select callers all keep working).
+#
+# DeckShift's original keeps a PERMANENT SDDM autologin drop-in and only flips
+# its Session= line, so the machine never shows a password screen. This version
+# writes the drop-in fresh on every switch and arms a one-shot marker in /run;
+# sddm-autologin-gate (ExecStartPre on sddm.service) consumes the marker so the
+# autologin applies to THAT restart only. Cold boots, crashes, and manual SDDM
+# restarts find no marker and get the normal password greeter.
+set -u
+
+CONF="/etc/sddm.conf.d/zz-gaming-session.conf"
+MARKER="/run/deckshift-session-switch"
+
+if [[ $EUID -ne 0 ]]; then
+  echo "Error: must run as root (callers use: sudo -n $0 ...)" >&2
+  exit 1
+fi
+
+# The desktop user comes from sudo (all DeckShift callers invoke via sudo -n).
+USER_NAME="${SUDO_USER:-}"
+if [[ -z "$USER_NAME" ]]; then
+  USER_NAME=$(loginctl list-sessions --no-legend 2>/dev/null | awk '$3 != "sddm" && $3 != "" { print $3; exit }')
+fi
+if [[ -z "$USER_NAME" ]]; then
+  echo "Error: cannot determine the user to autologin" >&2
+  exit 1
+fi
+
+case "${1:-}" in
+  gaming)  SESSION="gamescope-session-steam-nm" ;;
+  desktop) SESSION="hyprland-uwsm" ;;
+  *)
+    echo "Usage: $0 {gaming|desktop}" >&2
+    exit 1
+    ;;
+esac
+
+cat > "$CONF" << EOF
+[Autologin]
+User=${USER_NAME}
+Session=${SESSION}
+Relogin=false
+EOF
+touch "$MARKER"
+echo "Session set to: $1 mode (one-shot autologin armed)"

os updates/deckshift-login/install-deckshift-login.sh

@@ -0,0 +1,99 @@
+#!/bin/sh
+# install-deckshift-login.sh — full-session DeckShift gaming with a password
+# at boot. Keeps DeckShift's design (dedicated gamescope session, switched via
+# SDDM restart) but makes the autologin ONE-SHOT: it only fires for the
+# desktop<->gaming switch itself; every cold boot shows the password greeter.
+#
+# OPT-IN, POST-INSTALL component: the ISO ships this folder in the layer but
+# does NOT run it. Order on the installed system:
+#   1. run deckshift.sh (installs the gaming session, switch scripts, sudoers)
+#   2. run THIS script (patches the login behaviour + adds the Hyprland bind)
+# Re-run this script after any re-run of deckshift.sh (deckshift.sh restores
+# its permanent-autologin versions of these files).
+#
+# Needs sudo for: /usr/local/bin, /usr/lib, /etc/systemd, /etc/sddm.conf.d.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+HYPRUSER="$HOME/.config/caelestia/hypr-user.conf"
+MARK='deckshift gaming keys'
+
+# 0. DeckShift must already be installed.
+if [ ! -x /usr/local/bin/switch-to-gaming ] || [ ! -f /usr/share/wayland-sessions/gamescope-session-steam-nm.desktop ]; then
+  echo "ERROR: DeckShift is not installed (run deckshift.sh first, then re-run this)."
+  exit 1
+fi
+
+# 1. Replace the session-switch helper with the one-shot-autologin version.
+sudo install -m 0755 "$SRC/gaming-session-switch" /usr/local/bin/gaming-session-switch
+echo ":: patched gaming-session-switch (one-shot autologin per switch)"
+
+# 2. Install the SDDM start gate (script + sddm.service drop-in).
+sudo install -m 0755 "$SRC/sddm-autologin-gate" /usr/local/bin/sddm-autologin-gate
+sudo install -d -m 0755 /etc/systemd/system/sddm.service.d
+sudo install -m 0644 "$SRC/deckshift-autologin-gate.conf" /etc/systemd/system/sddm.service.d/deckshift-autologin-gate.conf
+sudo systemctl daemon-reload
+echo ":: installed sddm autologin gate (password greeter on every cold boot)"
+
+# 3. Drop the standing autologin drop-in; from now on it only exists
+#    transiently between "switch requested" and "SDDM restarted".
+if [ -f /etc/sddm.conf.d/zz-gaming-session.conf ]; then
+  sudo rm -f /etc/sddm.conf.d/zz-gaming-session.conf
+  echo ":: removed standing SDDM autologin drop-in"
+fi
+
+# 4. Ensure /usr/lib/os-session-select is DeckShift's handler (restores it if
+#    the withdrawn nested-gaming experiment overwrote it).
+if ! cmp -s "$SRC/os-session-select" /usr/lib/os-session-select 2>/dev/null; then
+  sudo install -m 0755 "$SRC/os-session-select" /usr/lib/os-session-select
+  echo ":: restored DeckShift os-session-select (Steam Exit to Desktop)"
+fi
+
+# 4b. Overlay switch-to-desktop: DeckShift's original pkills gamescope before
+#     its final `systemctl restart sddm`; the session teardown kills the
+#     script (it runs inside the gaming session) and the restart never fires —
+#     with one-shot autologin that strands the user at the greeter. Our
+#     version queues the restart as a detached root job instead (the proven
+#     os-session-select pattern), so Super+Shift+R returns to the desktop.
+sudo install -m 0755 "$SRC/switch-to-desktop" /usr/local/bin/switch-to-desktop
+echo ":: overlaid switch-to-desktop (queued SDDM restart, fixes Super+Shift+R exit)"
+
+# 5. Remove the withdrawn nested-gaming-mode bits if this box ever had them.
+rm -f "$HOME/.local/bin/nosignal-gaming-mode" "$HOME/.local/bin/nosignal-gaming-mode-exit" \
+      "$HOME/.local/share/applications/gaming-mode.desktop"
+if [ -f "$HYPRUSER" ] && grep -qF 'gaming-mode (nested)' "$HYPRUSER"; then
+  sed -i '/# >>> gaming-mode (nested) >>>/,/# <<< gaming-mode (nested) <<</d' "$HYPRUSER"
+  echo ":: removed withdrawn nested gaming-mode binds"
+fi
+
+# 6. Hyprland bind: Super+Shift+S -> switch-to-gaming. The BASE config now ships a
+#    self-guarding Super+Shift+S bind (omarchy-keys-user.conf) that launches the
+#    gaming session only if DeckShift is installed and does nothing otherwise, so
+#    this installer no longer adds the bind itself. We only add a GUARDED bind as a
+#    fallback if no switch-to-gaming bind exists at all (e.g. an older base without
+#    it) — never the old unguarded form, which would break Super+Shift+S on a box
+#    where the gaming session is missing. Exit from Gaming Mode is handled INSIDE
+#    the session (DeckShift's Super+Shift+R monitor, or Steam > Power > Exit).
+if [ ! -f "$HYPRUSER" ]; then
+  echo "NOTE: $HYPRUSER not found — base provides the guarded Super+Shift+S bind."
+elif grep -qF 'switch-to-gaming' "$HYPRUSER"; then
+  echo ":: gaming keybind already present (base provides the guarded Super+Shift+S)"
+else
+  cat >> "$HYPRUSER" << 'EOF'
+
+# >>> deckshift gaming keys >>>
+# Super+Shift+S = Gaming Mode IF DeckShift is installed; otherwise does nothing.
+# Self-guards on the gaming session file + switch-to-gaming helper. Exit happens
+# inside the session (Super+Shift+R, or Steam > Power > Exit to Desktop).
+unbind = Super+Shift, S
+bind = Super+Shift, S, exec, sh -c '[ -x /usr/local/bin/switch-to-gaming ] && [ -f /usr/share/wayland-sessions/gamescope-session-steam-nm.desktop ] && exec /usr/local/bin/switch-to-gaming'
+# <<< deckshift gaming keys <<<
+EOF
+  echo ":: added guarded Super+Shift+S -> switch-to-gaming (base bind was absent)"
+fi
+if command -v hyprctl >/dev/null 2>&1 && hyprctl version >/dev/null 2>&1; then
+  hyprctl reload >/dev/null 2>&1 || true
+fi
+
+echo "Done. Cold boot = password login. Super+Shift+S = Gaming Mode (full session);"
+echo "Super+Shift+R or Steam > Exit to Desktop returns without a login screen."

os updates/deckshift-login/os-session-select

@@ -0,0 +1,15 @@
+#!/bin/bash
+# /usr/lib/os-session-select — Steam's "Exit to Desktop" handler. This is
+# DeckShift's original version, verbatim (shipped here so the installer can
+# restore it if something else overwrote it). It flips the session back to
+# desktop, shuts Steam down, and restarts SDDM; with the patched
+# gaming-session-switch the autologin back to the desktop is one-shot.
+rm -f /tmp/.gaming-session-active
+sudo -n /usr/local/bin/gaming-session-switch desktop 2>/dev/null || {
+  echo "Warning: Failed to update session config"
+}
+timeout 5 steam -shutdown 2>/dev/null || true
+sleep 1
+nohup sudo -n systemctl restart sddm &>/dev/null &
+disown
+exit 0

os updates/deckshift-login/sddm-autologin-gate

@@ -0,0 +1,20 @@
+#!/bin/bash
+# sddm-autologin-gate — ExecStartPre for sddm.service (one-shot autologin).
+#
+# A DeckShift session switch arms autologin right before restarting SDDM:
+# gaming-session-switch writes the autologin drop-in AND touches the marker.
+# This gate runs every time SDDM starts:
+#   - marker present  -> a switch is in flight: consume the marker, keep the
+#                        drop-in, SDDM autologins into the target session once;
+#   - marker absent   -> cold boot / crash / manual restart: delete any stale
+#                        drop-in so the normal password greeter shows.
+# /run is tmpfs, so the marker can never survive a reboot.
+CONF="/etc/sddm.conf.d/zz-gaming-session.conf"
+MARKER="/run/deckshift-session-switch"
+
+if [[ -f "$MARKER" ]]; then
+  rm -f "$MARKER"
+else
+  rm -f "$CONF"
+fi
+exit 0

os updates/deckshift-login/switch-to-desktop

@@ -0,0 +1,64 @@
+#!/bin/bash
+# switch-to-desktop — deckshift-login overlay of DeckShift's original.
+#
+# WHY THIS OVERLAY EXISTS: the original pkilled gamescope and slept BEFORE its
+# final `systemctl restart sddm`. Killing gamescope ends the login session, and
+# logind then kills the session's processes — including this very script (it
+# is launched by the in-session keybind monitor) — so the restart never ran.
+# Stock DeckShift got away with that because its PERMANENT Relogin=true
+# autologin re-logged the user in anyway; with deckshift-login's one-shot
+# autologin it left the SDDM greeter instead.
+#
+# Fix, copied from the os-session-select path that already works: do the
+# cleanup, arm the one-shot switch, shut Steam down, then queue the SDDM
+# restart as a detached root job (nohup + disown). The restart job runs inside
+# PID 1, so it completes even though stopping SDDM kills this script and the
+# rest of the gaming session — no manual pkill of gamescope needed.
+if [[ ! -f /tmp/.gaming-session-active ]]; then
+  exit 0
+fi
+rm -f /tmp/.gaming-session-active
+
+# SYNCHRONOUS POWER RESTORE — done first because the trap-based restore in
+# gamescope-session-nm-wrapper can be SIGKILL'd by `systemctl restart sddm`
+# before it completes, leaving CPU governor / power profile stuck at
+# "performance". (Verbatim from DeckShift's original.)
+SAVED_STATE_FILE="$HOME/.cache/deckshift/saved-state"
+if [[ -f "$SAVED_STATE_FILE" ]]; then
+  # shellcheck disable=SC1090
+  source "$SAVED_STATE_FILE"
+  for gov in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
+    echo "${PRE_GAMING_CPU_GOVERNOR:-powersave}" > "$gov" 2>/dev/null
+  done
+  if command -v powerprofilesctl &>/dev/null && [[ -n "${PRE_GAMING_POWER_PROFILE:-}" ]]; then
+    sudo -n powerprofilesctl set "$PRE_GAMING_POWER_PROFILE" 2>/dev/null || \
+      powerprofilesctl set "$PRE_GAMING_POWER_PROFILE" 2>/dev/null
+  fi
+  rm -f "$SAVED_STATE_FILE"
+fi
+
+# Unmask suspend targets + daemon-reload (verbatim from DeckShift's original).
+sudo -n systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target 2>/dev/null
+sudo -n systemctl unmask --runtime sleep.target suspend.target hibernate.target hybrid-sleep.target 2>/dev/null
+sudo -n systemctl daemon-reload 2>/dev/null
+
+# Arm the one-shot autologin back to the desktop BEFORE anything can kill us.
+sudo -n /usr/local/bin/gaming-session-switch desktop 2>/dev/null || true
+
+# Re-enable Bluetooth (verbatim from DeckShift's original).
+sudo -n /usr/bin/rfkill unblock bluetooth 2>/dev/null || true
+sudo -n /usr/bin/systemctl start bluetooth.service 2>/dev/null || true
+
+# Portal-recovery marker for the next Hyprland startup (from the original;
+# moved earlier so it is written even if session teardown kills this script).
+touch /tmp/.deckshift-just-returned 2>/dev/null || true
+
+# Give Steam a clean shutdown, then hand over to the SDDM restart. Stopping
+# sddm.service tears down the whole gaming session (gamescope included) — the
+# same mechanism the working Steam "Exit to Desktop" path relies on.
+timeout 5 steam -shutdown 2>/dev/null || true
+sleep 1
+sudo -n chvt 2 2>/dev/null || true
+nohup sudo -n systemctl restart sddm &>/dev/null &
+disown
+exit 0

os updates/display-manager-sddm/README.md

@@ -0,0 +1,63 @@
+# display-manager-sddm — switch greetd → SDDM (for DeckShift gaming mode)
+
+DeckShift's desktop↔gaming-mode switching is built on **SDDM**: `switch-to-gaming`
+rewrites SDDM's config to point at the Gamescope/Steam session and restarts SDDM
+to auto-log into it (and back). NoSignal ships **greetd + tuigreet**, which has no
+equivalent, so this change replaces the display manager with SDDM.
+
+## What it does
+
+- Installs `sddm` (+ `xorg-server` for the reliable X11 greeter — the Hyprland
+  **session** stays Wayland; only SDDM's greeter uses X).
+- Installs `/etc/sddm.conf.d/10-nosignal.conf` (X11 greeter, Numlock on, notes on
+  the preferred session).
+- Disables `greetd.service`, enables `sddm.service`. **Takes effect on reboot.**
+
+## Critical: preserve the uwsm session
+
+greetd launched Hyprland via uwsm:
+`uwsm start -e -D Hyprland hyprland.desktop`. The matching session entry is
+**`/usr/share/wayland-sessions/hyprland-uwsm.desktop`** ("Hyprland
+(uwsm-managed)"). Under SDDM, pick **that** session, not plain
+`hyprland.desktop` (which runs `start-hyprland` directly and loses the
+uwsm/systemd-managed session caelestia relies on). SDDM remembers the last
+session per user.
+
+## Install (live)
+
+```sh
+sh install-display-manager-sddm.sh     # sudo; reboot afterwards
+```
+
+To revert: `sudo systemctl disable sddm; sudo systemctl enable greetd`.
+
+## Builder notes — display-manager swap (package + service delta)
+
+This is **not** a no-delta change. For the ISO:
+
+- **Packages:** add `sddm` (+ `xorg-server` if using the X11 greeter, OR `weston`
+  if using the Wayland greeter — pick one). Remove `greetd`, `greetd-tuigreet`,
+  `greetd-agreety` from the image package list (or keep as fallback).
+- **Services:** enable `sddm.service` instead of `greetd.service` in the image.
+- **Greeter display server (decision):**
+  - *X11 greeter* (this component's default): most reliable, but adds
+    `xorg-server` to an otherwise Wayland-only image.
+  - *Wayland greeter*: keeps the image X-free — set `DisplayServer=wayland` +
+    `[Wayland] CompositorCommand=weston --shell=kiosk` and add `weston`.
+- **Session default:** ensure `hyprland-uwsm.desktop` is the preferred desktop
+  session (uwsm launch — matches the old greetd `--cmd`). Don't let plain
+  `hyprland.desktop` win.
+- **Login behaviour:** greetd here did **not** autologin (tuigreet prompts).
+  SDDM keeps a password prompt unless `[Autologin]` is set. DeckShift configures
+  its own autologin/session entries on top — let it.
+- **DeckShift autologin (interaction to know about):** DeckShift writes
+  `/etc/sddm.conf.d/zz-gaming-session.conf` with `[Autologin] User=… /
+  Session=hyprland-uwsm / Relogin=true`. Once DeckShift runs, this **overrides
+  the password prompt** — the box boots straight into the desktop, and the
+  desktop↔gaming switch flips `Session=` then restarts SDDM (autologin, no
+  greeter). That's the intended Steam-Deck-style behaviour. If the ISO wants a
+  password on normal boots, ship a higher-priority SDDM drop-in or adjust
+  DeckShift's `gaming-session-switch` to only autologin while in gaming mode.
+- Pairs with gaming-enablement (multilib + omarchy-pkg-add). Together
+  these two make NoSignal DeckShift/Steam-Deck capable.
+- The base's plymouth/limine boot splash is unaffected.

os updates/display-manager-sddm/install-display-manager-sddm.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+# install-display-manager-sddm.sh — switch the display manager from greetd to
+# SDDM, so DeckShift's SDDM-based desktop<->gaming session switching works.
+# Idempotent. Needs sudo. Takes effect on next reboot.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+
+# 1. Install SDDM (+ xorg-server for the reliable X11 greeter; the Hyprland
+#    session itself stays Wayland). For an X-free image use the Wayland greeter
+#    instead (see sddm-10-nosignal.conf) and drop xorg-server here.
+echo ":: installing sddm + xorg-server (sudo)..."
+sudo pacman -S --needed --noconfirm sddm xorg-server
+
+# 2. Config drop-in (default desktop session = the uwsm-managed Hyprland).
+sudo install -D -m 0644 "$SRC/sddm-10-nosignal.conf" /etc/sddm.conf.d/10-nosignal.conf
+echo ":: installed /etc/sddm.conf.d/10-nosignal.conf"
+
+# 3. Swap the active display-manager service: greetd -> sddm.
+if systemctl is-enabled greetd.service >/dev/null 2>&1; then
+  sudo systemctl disable greetd.service
+  echo ":: disabled greetd.service"
+fi
+sudo systemctl enable sddm.service
+echo ":: enabled sddm.service (display-manager.service -> sddm)"
+
+cat <<'EOF'
+Done. Reboot to log in via SDDM.
+ - At the SDDM session picker choose "Hyprland (uwsm-managed)" once; SDDM remembers it.
+ - DeckShift's switch-to-gaming / switch-to-desktop then drive SDDM to flip
+   between your desktop and the Gamescope/Steam session.
+EOF

os updates/display-manager-sddm/sddm-10-nosignal.conf

@@ -0,0 +1,17 @@
+# NoSignal SDDM config (installed to /etc/sddm.conf.d/10-nosignal.conf).
+[General]
+# X11 greeter — the reliable, well-trodden path (needs xorg-server). The Hyprland
+# SESSION still runs on Wayland; only SDDM's own greeter uses X here.
+# For an X-free image instead, use the Wayland greeter:
+#   DisplayServer=wayland
+#   [Wayland]
+#   CompositorCommand=weston --shell=kiosk   (adds `weston` to the image)
+DisplayServer=x11
+Numlock=on
+
+[Users]
+# The desktop session to prefer. hyprland-uwsm.desktop launches Hyprland through
+# uwsm exactly like the old greetd config — keep this (NOT plain hyprland.desktop),
+# or caelestia's uwsm/systemd-managed session env won't apply.
+# (SDDM remembers the last-used session per user; DeckShift overrides this when
+#  switching to/from its Gamescope gaming session.)

os updates/fish-to-bash/README.md

@@ -0,0 +1,61 @@
+# NoSignal — fish → bash migration (Omarchy bash setup)
+
+Switches this Caelestia/NoSignal box from the fish shell to **bash, configured to
+match [Omarchy](https://github.com/basecamp/omarchy)**. Self-contained so it
+survives a wipe — copy this folder back with the rest of Downloads and run the
+installer.
+
+## Install
+
+```sh
+sh ~/Downloads/fish-to-bash/install-fish-to-bash.sh
+```
+
+Idempotent. Open a **new** terminal afterwards to land in bash.
+
+## What it does
+
+| Step | Effect |
+|------|--------|
+| Vendor `bash/` tree | Copied verbatim from Omarchy to `~/.local/share/omarchy/default/bash/` (`rc`, `shell`, `aliases`, `envs`, `init`, `functions`, `inputrc`, `completions`, `fns/*`) |
+| `~/.bashrc` | Omarchy's template; sources the tree above. Existing `~/.bashrc` backed up to `~/.bashrc.pre-omarchy` |
+| kitty | `~/.config/kitty/kitty.conf`: `shell fish` → `shell bash` |
+| foot | `~/.config/foot/foot.ini`: `shell=fish` → `shell=bash` |
+| Hyprland helpers | `wsaction.fish` & `configs.fish` replaced with bash ports (same filenames, bash shebang) so the stock keybinds keep working |
+
+## Why the layout matches Omarchy exactly
+
+The vendored files are byte-for-byte Omarchy and live at Omarchy's own path
+(`~/.local/share/omarchy/...`). That means: (a) the prompt/aliases/history/
+completion behaviour is identical to Omarchy, and (b) you can refresh them from
+upstream by re-copying `default/bash/` with no edits. `envs` sets
+`OMARCHY_PATH` and prepends `~/.local/bin` to `PATH` (so the keybind-help
+scripts resolve too). References to omarchy-only tools (`omarchy`, `mise`,
+`opencode`, `tdl`, `gum`, …) are all guarded with `command -v` or are function
+definitions, so missing tools are harmless until you actually call them.
+
+## NoSignal-specific additions (the only deviations from stock Omarchy)
+
+- `~/.bashrc` exports `EDITOR=nvim` if unset (Omarchy sets this in `uwsm/env`,
+  which we don't manage here).
+- `~/.bashrc` runs `cat ~/.local/state/caelestia/sequences.txt` so the terminal
+  picks up Caelestia's dynamic colour scheme.
+
+## Notes / things that changed from the old fish config
+
+- **`ga` / `gd` now mean Omarchy's git-worktree helpers**, not the old fish
+  abbreviations (`git add .` / `git diff`). Other git shortcuts: `g`, `gcm`,
+  `gcam`, `gcad`.
+- **direnv** was hooked in the old fish config; Omarchy's bash doesn't include
+  it. Add `eval "$(direnv hook bash)"` to the bottom of `~/.bashrc` if you want
+  it back.
+- The **fish package is left installed** (it may be pulled in as a Caelestia
+  dependency). Nothing interactive uses it anymore. Remove it only after
+  confirming nothing else needs it: `sudo pacman -Rns fish`.
+- The fish config dir (`~/.config/fish`, a Caelestia symlink) is left in place
+  but unused.
+
+## Requirements
+
+`bash`, and ideally `starship`, `zoxide`, `eza`, `fzf`, `bat` for the full
+Omarchy experience (all guarded — bash works without them).

os updates/fish-to-bash/bash/aliases

@@ -0,0 +1,60 @@
+# File system
+if command -v eza &> /dev/null; then
+  alias ls='eza -lh --group-directories-first --icons=auto'
+  alias lsa='ls -a'
+  alias lt='eza --tree --level=2 --long --icons --git'
+  alias lta='lt -a'
+fi
+
+if [[ "$TERM" == "xterm-kitty" ]]; then
+  alias ff="fzf --preview 'case \$(file --mime-type -b {}) in image/*) kitty icat --clear --transfer-mode=memory --stdin=no --place=\${FZF_PREVIEW_COLUMNS}x\${FZF_PREVIEW_LINES}@0x0 {} ;; *) bat --style=numbers --color=always {} ;; esac'"
+else
+  alias ff="fzf --preview 'bat --style=numbers --color=always {}'"
+fi
+alias eff='$EDITOR "$(ff)"'
+sff() { if [ $# -eq 0 ]; then echo "Usage: sff <destination> (e.g. sff host:/tmp/)"; return 1; fi; local file; file=$(find . -type f -printf '%T@\t%p\n' | sort -rn | cut -f2- | ff) && [ -n "$file" ] && scp "$file" "$1"; }
+
+if command -v zoxide &> /dev/null; then
+  alias cd="zd"
+  zd() {
+    if (( $# == 0 )); then
+      builtin cd ~ || return
+    elif [[ -d $1 ]]; then
+      builtin cd "$1" || return
+    else
+      if ! z "$@"; then
+        echo "Error: Directory not found"
+        return 1
+      fi
+
+      printf "\U000F17A9 "
+      pwd
+    fi
+  }
+fi
+
+open() (
+  xdg-open "$@" >/dev/null 2>&1 &
+)
+
+# Directories
+alias ..='cd ..'
+alias ...='cd ../..'
+alias ....='cd ../../..'
+
+# Tools
+alias c='opencode'
+alias cx='printf "\033[2J\033[3J\033[H" && claude --permission-mode bypassPermissions'
+alias d='docker'
+alias r='rails'
+alias t='tmux attach || tmux new -s Work'
+alias ic='tdl c'
+alias ix='tdl cx'
+alias icx='tdl c cx'
+n() { if [ "$#" -eq 0 ]; then command nvim . ; else command nvim "$@"; fi; }
+
+# Git
+alias g='git'
+alias gcm='git commit -m'
+alias gcam='git commit -a -m'
+alias gcad='git commit -a --amend'

os updates/fish-to-bash/bash/completions

@@ -0,0 +1,64 @@
+_omarchy_complete() {
+  COMPREPLY=()
+  local cur="${COMP_WORDS[COMP_CWORD]}"
+
+  local omarchy_path bin_dir
+  omarchy_path=$(command -v omarchy 2>/dev/null) || return 0
+  bin_dir=$(dirname -- "$(readlink -f -- "$omarchy_path" 2>/dev/null || printf '%s' "$omarchy_path")")
+  [[ -d $bin_dir ]] || return 0
+
+  local prefix="omarchy"
+  local i part
+  for ((i = 1; i < COMP_CWORD; i++)); do
+    part="${COMP_WORDS[i]}"
+    [[ -z $part || $part == -* ]] && continue
+    prefix+="-$part"
+  done
+
+  local -A seen=()
+  local candidates=()
+  local file basename rest next
+
+  shopt -s nullglob
+  for file in "$bin_dir/$prefix"-*; do
+    [[ -f $file && -x $file ]] || continue
+    basename="${file##*/}"
+    rest="${basename#"$prefix"-}"
+    next="${rest%%-*}"
+    if [[ -n $next && -z ${seen[$next]:-} ]]; then
+      seen[$next]=1
+      candidates+=("$next")
+    fi
+  done
+  shopt -u nullglob
+
+  if (( COMP_CWORD == 1 )); then
+    candidates+=("commands")
+  fi
+
+  if [[ ${COMP_WORDS[1]:-} == "commands" ]] && (( COMP_CWORD >= 2 )); then
+    candidates+=("--all" "--json" "--markdown" "--check")
+  fi
+
+  if (( ${#candidates[@]} == 0 )) && [[ -x $bin_dir/$prefix ]]; then
+    local args enum
+    args=$(grep -m 1 '^# omarchy:args=<' "$bin_dir/$prefix" 2>/dev/null)
+    enum="${args#*<}"
+    enum="${enum%%>*}"
+
+    if [[ $enum == *"|"* && $enum != *" "* ]]; then
+      read -r -a candidates <<<"${enum//|/ }"
+    fi
+  fi
+
+  if (( ${#candidates[@]} > 0 )); then
+    local IFS=$'\n'
+    COMPREPLY=($(compgen -W "${candidates[*]}" -- "$cur"))
+  fi
+}
+
+complete -o default -F _omarchy_complete omarchy
+
+# Hide individual omarchy-* binaries from initial-word command completion;
+# the unified `omarchy` dispatcher is the user-facing entry point.
+complete -I -A command -X 'omarchy-*'

os updates/fish-to-bash/bash/envs

@@ -0,0 +1,11 @@
+# Editor used by CLI
+export SUDO_EDITOR="$EDITOR"
+export BAT_THEME=ansi
+
+# Color man pages with bat
+export MANROFFOPT="-c"
+export MANPAGER="sh -c 'col -bx | bat -l man -p'"
+
+# Duplicated from .config/uwsm/env so SSH works too
+export OMARCHY_PATH=$HOME/.local/share/omarchy
+export PATH=$OMARCHY_PATH/bin:$PATH:$HOME/.local/bin

os updates/fish-to-bash/bash/fns/compression

@@ -0,0 +1,3 @@
+# Compression
+compress() { tar -czf "${1%/}.tar.gz" "${1%/}"; }
+alias decompress="tar -xzf"

os updates/fish-to-bash/bash/fns/drives

@@ -0,0 +1,59 @@
+# Write iso file to sd card
+iso2sd() {
+  if (( $# < 1 )); then
+    echo "Usage: iso2sd <input_file> [output_device]"
+    echo "Example: iso2sd ~/Downloads/ubuntu-25.04-desktop-amd64.iso /dev/sda"
+    return 1
+  fi
+
+  local iso="$1"
+  local drive="$2"
+
+  if [[ -z $drive ]]; then
+    local available_sds=$(lsblk -dpno NAME | grep -E '/dev/sd')
+
+    if [[ -z $available_sds ]]; then
+      echo "No SD drives found and no drive specified"
+      return 1
+    fi
+
+    drive=$(omarchy-drive-select "$available_sds")
+
+    if [[ -z $drive ]]; then
+      echo "No drive selected"
+      return 1
+    fi
+  fi
+
+  sudo dd bs=4M status=progress oflag=sync if="$iso" of="$drive"
+  sudo eject "$drive"
+}
+
+# Format an entire drive for a single partition using exFAT
+format-drive() {
+  if (( $# != 2 )); then
+    echo "Usage: format-drive <device> <name>"
+    echo "Example: format-drive /dev/sda 'My Stuff'"
+    echo -e "\nAvailable drives:"
+    lsblk -d -o NAME -n | awk '{print "/dev/"$1}'
+  else
+    echo "WARNING: This will completely erase all data on $1 and label it '$2'."
+    read -rp "Are you sure you want to continue? (y/N): " confirm
+
+    if [[ $confirm =~ ^[Yy]$ ]]; then
+      sudo wipefs -a "$1"
+      sudo dd if=/dev/zero of="$1" bs=1M count=100 status=progress
+      sudo parted -s "$1" mklabel gpt
+      sudo parted -s "$1" mkpart primary 1MiB 100%
+      sudo parted -s "$1" set 1 msftdata on
+
+      partition="$([[ $1 == *"nvme"* ]] && echo "${1}p1" || echo "${1}1")"
+      sudo partprobe "$1" || true
+      sudo udevadm settle || true
+
+      sudo mkfs.exfat -n "$2" "$partition"
+
+      echo "Drive $1 formatted as exFAT and labeled '$2'."
+    fi
+  fi
+}

os updates/fish-to-bash/bash/fns/ssh-port-forwarding

@@ -0,0 +1,19 @@
+fip() {
+  (( $# < 2 )) && echo "Usage: fip <host> <port1> [port2] ..." && return 1
+  local host="$1"
+  shift
+  for port in "$@"; do
+    ssh -f -N -L "$port:localhost:$port" "$host" && echo "Forwarding localhost:$port -> $host:$port"
+  done
+}
+
+dip() {
+  (( $# == 0 )) && echo "Usage: dip <port1> [port2] ..." && return 1
+  for port in "$@"; do
+    pkill -f "ssh.*-L $port:localhost:$port" && echo "Stopped forwarding port $port" || echo "No forwarding on port $port"
+  done
+}
+
+lip() {
+  pgrep -af "ssh.*-L [0-9]+:localhost:[0-9]+" || echo "No active forwards"
+}

os updates/fish-to-bash/bash/fns/tmux

@@ -0,0 +1,97 @@
+# Create a Tmux Dev Layout with editor, ai, and terminal
+# Usage: tdl <c|cx|codex|other_ai> [<second_ai>]
+tdl() {
+  [[ -z $1 ]] && { echo "Usage: tdl <c|cx|codex|other_ai> [<second_ai>]"; return 1; }
+  [[ -z $TMUX ]] && { echo "You must start tmux to use tdl."; return 1; }
+
+  local current_dir="${PWD}"
+  local editor_pane ai_pane ai2_pane
+  local ai="$1"
+  local ai2="$2"
+
+  # Use TMUX_PANE for the pane we're running in (stable even if active window changes)
+  editor_pane="$TMUX_PANE"
+
+  # Name the current window after the base directory name
+  tmux rename-window -t "$editor_pane" "$(basename "$current_dir")"
+
+  # Split window vertically - top 85%, bottom 15% (target editor pane explicitly)
+  tmux split-window -v -p 15 -t "$editor_pane" -c "$current_dir"
+
+  # Split editor pane horizontally - AI on right 30% (capture new pane ID directly)
+  ai_pane=$(tmux split-window -h -p 30 -t "$editor_pane" -c "$current_dir" -P -F '#{pane_id}')
+
+  # If second AI provided, split the AI pane vertically
+  if [[ -n $ai2 ]]; then
+    ai2_pane=$(tmux split-window -v -t "$ai_pane" -c "$current_dir" -P -F '#{pane_id}')
+    tmux send-keys -t "$ai2_pane" "$ai2" C-m
+  fi
+
+  # Run ai in the right pane
+  tmux send-keys -t "$ai_pane" "$ai" C-m
+
+  # Run nvim in the left pane
+  tmux send-keys -t "$editor_pane" "$EDITOR ." C-m
+
+  # Select the nvim pane for focus
+  tmux select-pane -t "$editor_pane"
+}
+
+# Create multiple tdl windows with one per subdirectory in the current directory
+# Usage: tdlm <c|cx|codex|other_ai> [<second_ai>]
+tdlm() {
+  [[ -z $1 ]] && { echo "Usage: tdlm <c|cx|codex|other_ai> [<second_ai>]"; return 1; }
+  [[ -z $TMUX ]] && { echo "You must start tmux to use tdlm."; return 1; }
+
+  local ai="$1"
+  local ai2="$2"
+  local base_dir="$PWD"
+  local first=true
+
+  # Rename the session to the current directory name (replace dots/colons which tmux disallows)
+  tmux rename-session "$(basename "$base_dir" | tr '.:' '--')"
+
+  for dir in "$base_dir"/*/; do
+    [[ -d $dir ]] || continue
+    local dirpath="${dir%/}"
+
+    if $first; then
+      # Reuse the current window for the first project
+      tmux send-keys -t "$TMUX_PANE" "cd '$dirpath' && tdl $ai $ai2" C-m
+      first=false
+    else
+      local pane_id=$(tmux new-window -c "$dirpath" -P -F '#{pane_id}')
+      tmux send-keys -t "$pane_id" "tdl $ai $ai2" C-m
+    fi
+  done
+}
+
+# Create a multi-pane swarm layout with the same command started in each pane (great for AI)
+# Usage: tsl <pane_count> <command>
+tsl() {
+  [[ -z $1 || -z $2 ]] && { echo "Usage: tsl <pane_count> <command>"; return 1; }
+  [[ -z $TMUX ]] && { echo "You must start tmux to use tsl."; return 1; }
+
+  local count="$1"
+  local cmd="$2"
+  local current_dir="${PWD}"
+  local -a panes
+
+  tmux rename-window -t "$TMUX_PANE" "$(basename "$current_dir")"
+
+  panes+=("$TMUX_PANE")
+
+  while (( ${#panes[@]} < count )); do
+    local new_pane
+    local split_target="${panes[-1]}"
+    new_pane=$(tmux split-window -h -t "$split_target" -c "$current_dir" -P -F '#{pane_id}')
+    panes+=("$new_pane")
+    tmux select-layout -t "${panes[0]}" tiled
+  done
+
+  for pane in "${panes[@]}"; do
+    tmux send-keys -t "$pane" "$cmd" C-m
+  done
+
+  tmux select-pane -t "${panes[0]}"
+}

os updates/fish-to-bash/bash/fns/transcoding

@@ -0,0 +1,33 @@
+# Transcoding helpers have moved to omarchy-transcode.
+
+transcode-video-1080p() {
+  omarchy-transcode "$1" mp4 1080p
+}
+
+transcode-video-4K() {
+  omarchy-transcode "$1" mp4 4k
+}
+
+transcode-video-gif() {
+  omarchy-transcode "$1" gif 1080p
+}
+
+img2jpg() {
+  omarchy-transcode "$1" jpg high
+}
+
+img2jpg-small() {
+  omarchy-transcode "$1" jpg low
+}
+
+img2jpg-medium() {
+  omarchy-transcode "$1" jpg medium
+}
+
+img2jpg-large() {
+  omarchy-transcode "$1" jpg high
+}
+
+img2png() {
+  omarchy-transcode "$1" png high
+}

os updates/fish-to-bash/bash/fns/worktrees

@@ -0,0 +1,36 @@
+# Create a new worktree and branch from within current git directory.
+ga() {
+  if [[ -z "$1" ]]; then
+    echo "Usage: ga [branch name]"
+    return 1
+  fi
+
+  local branch="$1"
+  local base="$(basename "$PWD")"
+  local wt_path="../${base}--${branch}"
+
+  git worktree add -b "$branch" "$wt_path"
+  mise trust "$wt_path"
+  cd "$wt_path"
+}
+
+# Remove worktree and branch from within active worktree directory.
+gd() {
+  if gum confirm "Remove worktree and branch?"; then
+    local cwd base branch root worktree
+
+    cwd="$(pwd)"
+    worktree="$(basename "$cwd")"
+
+    # split on first `--`
+    root="${worktree%%--*}"
+    branch="${worktree#*--}"
+
+    # Protect against accidentally nuking a non-worktree directory
+    if [[ "$root" != "$worktree" ]]; then
+      cd "../$root"
+      git worktree remove "$cwd" --force || return 1
+      git branch -D "$branch"
+    fi
+  fi
+}

os updates/fish-to-bash/bash/functions

@@ -0,0 +1 @@
+for f in $OMARCHY_PATH/default/bash/fns/*; do source "$f"; done

os updates/fish-to-bash/bash/init

@@ -0,0 +1,30 @@
+if command -v mise &> /dev/null; then
+  eval "$(mise activate bash)"
+fi
+
+if [[ $- == *i* ]] && [[ ${TERM:-} != "dumb" ]] && command -v starship &> /dev/null; then
+  eval "$(starship init bash)"
+fi
+
+if command -v zoxide &> /dev/null; then
+  eval "$(zoxide init bash)"
+fi
+
+if command -v try &> /dev/null; then
+  try() {
+    unset -f try
+    eval "$(SHELL=/bin/bash command try init ~/Work/tries)"
+    try "$@"
+  }
+fi
+
+if command -v fzf &> /dev/null; then
+  if [[ -f /usr/share/fzf/completion.bash ]]; then
+    source /usr/share/fzf/completion.bash
+  fi
+  if [[ -f /usr/share/fzf/key-bindings.bash ]]; then
+    source /usr/share/fzf/key-bindings.bash
+  fi
+fi
+
+source "$OMARCHY_PATH/default/bash/completions"

os updates/fish-to-bash/bash/inputrc

@@ -0,0 +1,47 @@
+set meta-flag on
+set input-meta on
+set output-meta on
+set convert-meta off
+set completion-ignore-case on
+set completion-prefix-display-length 2
+set show-all-if-ambiguous on
+set show-all-if-unmodified on
+
+# Arrow keys match what you've typed so far against your command history
+"\e[A": history-search-backward
+"\e[B": history-search-forward
+"\e[C": forward-char
+"\e[D": backward-char
+
+# Immediately add a trailing slash when autocompleting symlinks to directories
+set mark-symlinked-directories on
+
+# Do not autocomplete hidden files unless the pattern explicitly begins with a dot
+set match-hidden-files off
+
+# Show all autocomplete results at once
+set page-completions off
+
+# If there are more than 200 possible completions for a word, ask to show them all
+set completion-query-items 200
+
+# Show extra file information when completing, like `ls -F` does
+set visible-stats on
+
+# Be more intelligent when autocompleting by also looking at the text after
+# the cursor. For example, when the current line is "cd ~/src/mozil", and
+# the cursor is on the "z", pressing Tab will not autocomplete it to "cd
+# ~/src/mozillail", but to "cd ~/src/mozilla". (This is supported by the
+# Readline used by Bash 4.)
+set skip-completed-text on
+
+# Coloring for Bash 4 tab completions.
+set colored-stats on
+
+# Cycle forward and backward through completion candidates (tab/shift+tab)
+# (completion listing and display behavior configured above)
+TAB: menu-complete
+"\e[Z": menu-complete-backward
+
+# On first Tab, complete the common prefix before cycling candidates
+set menu-complete-display-prefix on

os updates/fish-to-bash/bash/rc

@@ -0,0 +1,6 @@
+source ~/.local/share/omarchy/default/bash/envs
+source ~/.local/share/omarchy/default/bash/shell
+source ~/.local/share/omarchy/default/bash/aliases
+source ~/.local/share/omarchy/default/bash/functions
+source ~/.local/share/omarchy/default/bash/init
+[[ $- == *i* ]] && bind -f ~/.local/share/omarchy/default/bash/inputrc

os updates/fish-to-bash/bash/shell

@@ -0,0 +1,13 @@
+# History control
+shopt -s histappend
+HISTCONTROL=ignoreboth
+HISTSIZE=32768
+HISTFILESIZE="${HISTSIZE}"
+
+# Autocompletion
+if [[ ! -v BASH_COMPLETION_VERSINFO && -f /usr/share/bash-completion/bash_completion ]]; then
+  source /usr/share/bash-completion/bash_completion
+fi
+
+# Ensure command hashing is off for mise
+set +h

os updates/fish-to-bash/bashrc

@@ -0,0 +1,17 @@
+# If not running interactively, don't do anything (leave this at the top of this file)
+[[ $- != *i* ]] && return
+
+# NoSignal: default CLI editor (Omarchy normally exports this from uwsm/env).
+export EDITOR="${EDITOR:-nvim}"
+
+# All the default Omarchy aliases and functions
+# (don't mess with these directly, just overwrite them here!)
+source ~/.local/share/omarchy/default/bash/rc
+
+# NoSignal: apply the active Caelestia colour scheme to this terminal.
+[[ $- == *i* ]] && cat ~/.local/state/caelestia/sequences.txt 2>/dev/null
+
+# Add your own exports, aliases, and functions here.
+#
+# Make an alias for invoking commands you use constantly
+# alias p='python'

os updates/fish-to-bash/hypr-configs.bash

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Ensure the NoSignal user-override files exist — bash port of configs.fish.
+# Installed to ~/.config/hypr/scripts/configs.fish (the path hyprland.conf
+# exec's at startup); runs as bash via this shebang.
+# Usage: configs <config-dir>
+
+reload=false
+dir="$1"
+
+[[ -d "$dir" ]] || mkdir -p "$dir"
+
+if [[ ! -f "$dir/hypr-vars.conf" ]]; then
+  touch "$dir/hypr-vars.conf"
+  reload=true
+fi
+
+if [[ ! -f "$dir/hypr-user.conf" ]]; then
+  touch "$dir/hypr-user.conf"
+  reload=true
+fi
+
+$reload && hyprctl reload

os updates/fish-to-bash/hypr-wsaction.bash

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# Workspace dispatcher helper — bash port of Caelestia's wsaction.fish.
+# Installed to ~/.config/hypr/scripts/wsaction.fish (the path the stock
+# keybinds.conf calls); runs as bash via this shebang.
+# Usage: wsaction [-g] <dispatcher> <workspace>
+
+group=0
+if [[ "$1" == "-g" ]]; then
+  group=1
+  shift
+fi
+
+if [[ $# -ne 2 ]]; then
+  echo "Wrong number of arguments. Usage: wsaction [-g] <dispatcher> <workspace>" >&2
+  exit 1
+fi
+
+dispatcher="$1"
+target="$2"
+active_ws=$(hyprctl activeworkspace -j | jq -r '.id')
+
+if (( group )); then
+  # Move to the same slot within workspace group <target>
+  hyprctl dispatch "$dispatcher" "$(( (target - 1) * 10 + active_ws % 10 ))"
+else
+  # Move to workspace <target> within the current group
+  hyprctl dispatch "$dispatcher" "$(( (active_ws - 1) / 10 * 10 + target ))"
+fi

os updates/fish-to-bash/install-fish-to-bash.sh

@@ -0,0 +1,68 @@
+#!/bin/sh
+# install-fish-to-bash.sh — migrate this NoSignal box from fish to bash, matching
+# the Omarchy bash setup. Everything ships in this folder so it survives a wipe.
+#
+# Applies:
+#   1. Vendors Omarchy's default/bash tree -> ~/.local/share/omarchy/default/bash
+#   2. Installs ~/.bashrc (Omarchy template + Caelestia colour-scheme line)
+#   3. Points kitty + foot at bash
+#   4. Replaces the two Hyprland helper scripts with bash ports (kept at their
+#      .fish paths so the stock keybinds.conf / hyprland.conf keep working)
+#
+# Idempotent (safe to re-run). Backs up an existing ~/.bashrc once.
+# Does NOT remove the fish package — see README.md.
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+OMARCHY_BASH="$HOME/.local/share/omarchy/default/bash"
+
+# 1. Vendor the Omarchy bash tree.
+mkdir -p "$OMARCHY_BASH/fns"
+for f in rc shell aliases envs init functions inputrc completions; do
+  cp "$SRC/bash/$f" "$OMARCHY_BASH/$f"
+done
+cp "$SRC/bash/fns/"* "$OMARCHY_BASH/fns/"
+echo "vendored Omarchy bash tree -> $OMARCHY_BASH"
+
+# 2. Install ~/.bashrc (back up any existing one, once).
+if [ -f "$HOME/.bashrc" ] && [ ! -f "$HOME/.bashrc.pre-omarchy" ]; then
+  cp "$HOME/.bashrc" "$HOME/.bashrc.pre-omarchy"
+  echo "backed up existing ~/.bashrc -> ~/.bashrc.pre-omarchy"
+fi
+cp "$SRC/bashrc" "$HOME/.bashrc"
+echo "installed ~/.bashrc"
+
+# 3. Terminals -> bash.
+KITTY="$HOME/.config/kitty/kitty.conf"
+if [ -f "$KITTY" ]; then
+  if grep -q '^shell ' "$KITTY"; then
+    sed -i 's/^shell .*/shell bash/' "$KITTY"
+  else
+    printf '\nshell bash\n' >> "$KITTY"
+  fi
+  echo "kitty -> bash"
+fi
+FOOT="$HOME/.config/foot/foot.ini"
+if [ -f "$FOOT" ]; then
+  if grep -q '^shell=' "$FOOT"; then
+    sed -i 's/^shell=.*/shell=bash/' "$FOOT"
+  else
+    sed -i '1i shell=bash' "$FOOT"
+  fi
+  echo "foot -> bash"
+fi
+
+# 4. Hyprland helper scripts -> bash (keep the .fish filenames the config calls).
+SCRIPTS="$HOME/.config/hypr/scripts"
+if [ -d "$SCRIPTS" ]; then
+  install -m 0755 "$SRC/hypr-wsaction.bash" "$SCRIPTS/wsaction.fish"
+  install -m 0755 "$SRC/hypr-configs.bash"  "$SCRIPTS/configs.fish"
+  echo "Hyprland helper scripts -> bash"
+fi
+
+# 5. Reload Hyprland if running.
+if command -v hyprctl >/dev/null 2>&1 && hyprctl version >/dev/null 2>&1; then
+  hyprctl reload >/dev/null 2>&1 && echo "reloaded Hyprland"
+fi
+
+echo "Done. Open a NEW terminal to land in bash."

os updates/gamemode-toggle-deckshift/README.md

@@ -0,0 +1,80 @@
+# gamemode-toggle-deckshift — Game Mode toggle launches DeckShift
+
+Companion to `gaming-key-guard` (which does the Super+Shift+S keybind). Patches
+the package-owned nosignal-shell file; the canonical fix is in the fork.
+
+## Request
+The utilities **Game Mode** button (gamepad icon) should launch the DeckShift
+gaming session when DeckShift is installed, and do nothing otherwise. Previously
+it ran caelestia's cosmetic Game Mode (disable Hyprland animations/blur/gaps).
+
+## Change
+`modules/utilities/cards/Toggles.qml`, the `gameMode` `DelegateChoice`:
+
+before
+```qml
+delegate: Toggle {
+    icon: "gamepad"
+    checked: GameMode.enabled
+    onClicked: GameMode.enabled = !GameMode.enabled
+}
+```
+after (hardened)
+```qml
+delegate: Toggle {
+    id: gmTog
+    property bool launching: false
+    icon: "gamepad"
+    disabled: launching
+    onClicked: {
+        if (gmTog.launching) return;
+        gmTog.launching = true;
+        gmTog.internalChecked = false; // don't latch "on" — it's a launcher
+        relockTimer.start();
+        Quickshell.execDetached(["sh", "-c", "[ -x /usr/local/bin/switch-to-gaming ] && [ -f /usr/share/wayland-sessions/gamescope-session-steam-nm.desktop ] && exec /usr/local/bin/switch-to-gaming"]);
+    }
+    Timer { id: relockTimer; interval: 5000; onTriggered: gmTog.launching = false }
+}
+```
+- **Kept styled as an off-toggle** (default `isToggle: true`, no `checked`) so it
+  keeps the muted/outline look of the other toggles. An earlier version set
+  `isToggle: false`, which flipped the icon to filled/accent — that was the
+  reported "changed colour"; reverted. `internalChecked` is reset to false on
+  click so the launcher never latches "on".
+- **Debounced.** A fast double-click previously fired `switch-to-gaming` twice →
+  two `systemctl restart sddm` calls → the first restart consumed the one-shot
+  autologin marker and the second fell back to the password greeter (the reported
+  "takes you to the login screen, not gamescope"). The `launching` guard +
+  `disabled` + 5 s `relockTimer` ensure one launch per press.
+- The `sh -c '… && … && exec switch-to-gaming'` guard mirrors the Super+Shift+S
+  bind and the deckshift-login install-check: nothing happens if DeckShift is absent.
+- Adds `import Quickshell` (for `execDetached`; the file only had
+  `Quickshell.Bluetooth`). `GameMode` (from `qs.services`) is no longer referenced
+  here — the cosmetic Game Mode is still available via its IPC (`gameMode` target)
+  if a future build wants to re-expose it elsewhere.
+- **Hidden when DeckShift isn't installed.** A `deckshiftProbe` Process
+  (`test -f /usr/share/wayland-sessions/gamescope-session-steam-nm.desktop`) sets
+  `root.deckshiftInstalled` at load, and the `quickToggles` filter drops the
+  `gameMode` entry when it's false (same pattern as the existing `vpn` special-case)
+  — so the tile cleanly leaves the grid (no dead button, no gap) on non-gaming
+  boxes, and appears once DeckShift is installed (after a shell reload). Needs
+  `import Quickshell.Io` for `Process`.
+
+## Pieces / integration
+1. **`Toggles.qml`** — corrected file (drop-in for
+   `modules/utilities/cards/Toggles.qml` in the nosignal-shell fork). Rebuild the
+   package; set `NOSIGNAL_SKIP_SHELL_PATCH` for the build.
+2. **`install-gamemode-toggle-deckshift.sh`** — idempotent fallback patch (backup +
+   overwrite). Reverted by the next nosignal-shell upgrade (which carries the fix).
+3. **`1781478000-gamemode-toggle-deckshift.sh`** → `nosignal-update/migrations/`
+   (delegates via `$NOSIGNAL_SRC`).
+
+**Shell restart required:** `qs -c caelestia -n -d` disables the file watcher, so
+the patched file is not hot-reloaded — restart the shell (**Ctrl+Super+Alt+R**) or
+log out/in after patching.
+
+## Apply on this box now (needs root)
+```sh
+sudo sh ~/nosignal-handoff/gamemode-toggle-deckshift/install-gamemode-toggle-deckshift.sh
+```
+then **Ctrl+Super+Alt+R**.

os updates/gamemode-toggle-deckshift/Toggles.qml

@@ -0,0 +1,207 @@
+pragma ComponentBehavior: Bound
+
+import QtQuick
+import QtQuick.Layouts
+import Quickshell
+import Quickshell.Io
+import Quickshell.Bluetooth
+import Caelestia.Components
+import Caelestia.Config
+import qs.components
+import qs.components.controls
+import qs.services
+import qs.modules.nexus
+import qs.modules.bar.popouts as BarPopouts
+
+StyledRect {
+    id: root
+
+    required property DrawerVisibilities visibilities
+    required property BarPopouts.Wrapper popouts
+
+    // NoSignal: the gamepad "Game Mode" toggle launches DeckShift gaming. Hide it
+    // entirely when DeckShift isn't installed (no gamescope session file) — checked
+    // once at load by deckshiftProbe below.
+    property bool deckshiftInstalled: false
+
+    Process {
+        id: deckshiftProbe
+        running: true
+        command: ["test", "-f", "/usr/share/wayland-sessions/gamescope-session-steam-nm.desktop"]
+        onExited: (exitCode, exitStatus) => root.deckshiftInstalled = exitCode === 0
+    }
+
+    readonly property var quickToggles: {
+        const seenIds = new Set();
+
+        return Config.utilities.quickToggles.filter(item => {
+            if (!(item.enabled ?? true))
+                return false;
+
+            if (seenIds.has(item.id)) {
+                return false;
+            }
+
+            if (item.id === "vpn") {
+                return GlobalConfig.utilities.vpn.provider.some(p => typeof p === "object" ? (p.enabled === true) : false);
+            }
+
+            // NoSignal: drop the Game Mode tile unless DeckShift is installed.
+            if (item.id === "gameMode") {
+                return root.deckshiftInstalled;
+            }
+
+            seenIds.add(item.id);
+            return true;
+        });
+    }
+    readonly property int splitIndex: Math.ceil(quickToggles.length / 2)
+    readonly property bool needExtraRow: quickToggles.length > 6
+
+    Layout.fillWidth: true
+    implicitHeight: layout.implicitHeight + Tokens.padding.extraLargeIncreased
+
+    radius: Tokens.rounding.large
+    color: Colours.tPalette.m3surfaceContainer
+
+    ColumnLayout {
+        id: layout
+
+        anchors.fill: parent
+        anchors.margins: Tokens.padding.large
+        spacing: Tokens.spacing.medium
+
+        StyledText {
+            text: qsTr("Quick Toggles")
+            font: Tokens.font.body.medium
+        }
+
+        QuickToggleRow {
+            model: root.needExtraRow ? root.quickToggles.slice(0, root.splitIndex) : root.quickToggles
+        }
+
+        QuickToggleRow {
+            visible: root.needExtraRow
+            model: root.needExtraRow ? root.quickToggles.slice(root.splitIndex) : []
+        }
+    }
+
+    component QuickToggleRow: ButtonRow {
+        property alias model: repeater.model
+
+        Layout.fillWidth: true
+        spacing: Tokens.spacing.small
+
+        Repeater {
+            id: repeater
+
+            delegate: DelegateChooser {
+                role: "id"
+
+                DelegateChoice {
+                    roleValue: "wifi"
+                    delegate: Toggle {
+                        icon: "wifi"
+                        checked: Nmcli.wifiEnabled
+                        onClicked: Nmcli.toggleWifi()
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "bluetooth"
+                    delegate: Toggle {
+                        icon: "bluetooth"
+                        checked: Bluetooth.defaultAdapter?.enabled ?? false // qmllint disable unresolved-type
+                        onClicked: {
+                            const adapter = Bluetooth.defaultAdapter; // qmllint disable unresolved-type
+                            if (adapter)
+                                adapter.enabled = !adapter.enabled;
+                        }
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "mic"
+                    delegate: Toggle {
+                        icon: "mic"
+                        checked: !Audio.sourceMuted
+                        onClicked: {
+                            const audio = Audio.source?.audio;
+                            if (audio)
+                                audio.muted = !audio.muted;
+                        }
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "settings"
+                    delegate: Toggle {
+                        icon: "settings"
+                        inactiveOnColour: Colours.palette.m3onSurfaceVariant
+                        isToggle: false
+                        onClicked: {
+                            root.visibilities.utilities = false;
+                            WindowFactory.create();
+                        }
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "gameMode"
+                    delegate: Toggle {
+                        id: gmTog
+                        // NoSignal: launch the DeckShift gaming session if installed;
+                        // otherwise do nothing. (Was caelestia's cosmetic Game Mode.)
+                        // Kept styled as an off-toggle (muted, outline icon) — the
+                        // gamepad is a momentary LAUNCHER, not a stateful toggle.
+                        // DEBOUNCED: a fast double-click must not fire two
+                        // `switch-to-gaming` runs — two SDDM restarts race the
+                        // one-shot autologin and drop you at the password greeter.
+                        // Guard mirrors the Super+Shift+S bind + the deckshift-login
+                        // install-check, so it no-ops if DeckShift is absent.
+                        property bool launching: false
+                        icon: "gamepad"
+                        disabled: launching
+                        onClicked: {
+                            if (gmTog.launching)
+                                return;
+                            gmTog.launching = true;
+                            gmTog.internalChecked = false; // don't latch "on"
+                            relockTimer.start();
+                            Quickshell.execDetached(["sh", "-c", "[ -x /usr/local/bin/switch-to-gaming ] && [ -f /usr/share/wayland-sessions/gamescope-session-steam-nm.desktop ] && exec /usr/local/bin/switch-to-gaming"]);
+                        }
+
+                        Timer {
+                            id: relockTimer
+                            interval: 5000
+                            onTriggered: gmTog.launching = false
+                        }
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "dnd"
+                    delegate: Toggle {
+                        icon: "notifications_off"
+                        checked: Notifs.dnd
+                        onClicked: Notifs.dnd = !Notifs.dnd
+                    }
+                }
+                DelegateChoice {
+                    roleValue: "vpn"
+                    delegate: Toggle {
+                        icon: "vpn_key"
+                        checked: VPN.connected && VPN.status.state !== "needs-auth" && VPN.status.state !== "error"
+                        enabled: !VPN.connecting
+                        isToggle: VPN.status.state !== "needs-auth" && VPN.status.state !== "error"
+                        inactiveOnColour: Colours.palette.m3onSurfaceVariant
+                        onClicked: VPN.toggle()
+                    }
+                }
+            }
+        }
+    }
+
+    component Toggle: IconButton {
+        inactiveColour: Colours.layer(Colours.palette.m3surfaceContainerHighest, 2)
+        fillWidth: true
+        isToggle: true
+        isRound: true
+        shapeMorph: true
+    }
+}

os updates/gamemode-toggle-deckshift/install-gamemode-toggle-deckshift.sh

@@ -0,0 +1,40 @@
+#!/bin/sh
+# install-gamemode-toggle-deckshift.sh — idempotent. REQUIRES ROOT (writes the
+# package-owned shell file under /etc/xdg).
+#
+# Repoints the utilities "Game Mode" gamepad toggle to launch the DeckShift gaming
+# session if DeckShift is installed; otherwise it does nothing. (Was caelestia's
+# cosmetic Game Mode toggle — disable animations/blur/gaps.) See README.
+#
+# Toggles.qml is shipped by the `nosignal-shell` package (baked into the fork). The
+# REAL fix is in the fork source — this fallback patch is for already-installed boxes
+# and is reverted by the next nosignal-shell upgrade (which carries the fixed file).
+# The builder bakes it into the fork and sets NOSIGNAL_SKIP_SHELL_PATCH to skip this.
+set -eu
+
+SELF_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+TARGET=/etc/xdg/quickshell/caelestia/modules/utilities/cards/Toggles.qml
+
+if [ -n "${NOSIGNAL_SKIP_SHELL_PATCH:-}" ]; then
+    echo ":: skipping fallback shell patch (NOSIGNAL_SKIP_SHELL_PATCH — fork bakes the fix)"
+    exit 0
+fi
+
+[ "$(id -u)" -eq 0 ] || { echo "must run as root (writes $TARGET)" >&2; exit 1; }
+
+if [ ! -f "$TARGET" ]; then
+    echo "WARNING: $TARGET not present — nosignal-shell not installed here; nothing to patch." >&2
+    exit 0
+fi
+
+if cmp -s "$SELF_DIR/Toggles.qml" "$TARGET"; then
+    echo ":: Game Mode toggle already up to date — nothing to do."
+    exit 0
+fi
+
+# preserve the ORIGINAL (pre-NoSignal) file only on the first patch, so re-running
+# with a newer Toggles.qml (e.g. the hardened version) doesn't overwrite the backup
+[ -f "$TARGET.prefix.bak" ] || cp -a "$TARGET" "$TARGET.prefix.bak"
+install -m 0644 "$SELF_DIR/Toggles.qml" "$TARGET"
+echo ":: patched $TARGET (backup: $TARGET.prefix.bak)"
+echo ":: restart the shell to apply: Ctrl+Super+Alt+R, or log out/in."

os updates/gaming-enablement/README.md

@@ -0,0 +1,55 @@
+# gaming-enablement — multilib repo + omarchy-pkg-add shim
+
+Makes Omarchy-targeted Steam/gaming install scripts (e.g. **DeckShift**) work on
+NoSignal. Two gaps were blocking them:
+
+1. **`[multilib]` was disabled** in `/etc/pacman.conf` — the 32-bit repo every
+   `lib32-*` package (Steam, Wine, gaming libs) lives in. Without it, pacman/yay
+   can't see those packages at all.
+2. **`omarchy-pkg-add` doesn't exist** on NoSignal — it ships `yay`/Shelly, not the
+   Omarchy CLI helpers, so scripts die at `omarchy-pkg-add: command not found`.
+
+## What it does
+
+- Uncomments the `[multilib]` block in `/etc/pacman.conf` (leaving
+  `[multilib-testing]` alone) and runs `pacman -Sy`.
+- Installs **Omarchy CLI shims** → `~/.local/bin` (NoSignal ships yay + the
+  caelestia launcher, not the Omarchy helpers DeckShift expects):
+
+  | Shim | NoSignal behaviour |
+  |------|------------------|
+  | `omarchy-pkg-add` | `yay -S --needed --noconfirm "$@"` (idempotent installs) |
+  | `omarchy-install-gaming-steam` | `yay -S steam` + best-effort first launch (needs multilib) |
+  | `omarchy-hw-nvidia-gsp` | exit 0 if an NVIDIA GPU is present (modern/GSP branch) |
+  | `omarchy-hw-nvidia-without-gsp` | exit 1 (defaults to modern branch; see note) |
+  | `omarchy-restart-walker` | no Walker here — refresh desktop DB, succeed |
+
+  The NVIDIA shims default any present card to the modern (`nvidia-utils`)
+  branch; pre-Turing cards need `nvidia-580xx-*` by hand. On this AMD+Intel box
+  both correctly report "no NVIDIA".
+
+## Install
+
+```sh
+sh install-gaming-enablement.sh     # needs sudo for the pacman.conf edit + sync
+```
+
+After this, `./deckshift.sh` (and similar) find their deps and proceed. Note:
+DeckShift also *optionally* calls `omarchy-install-gaming-steam`,
+`omarchy-hw-nvidia-gsp`, `omarchy-restart-walker` — those are `command -v`-guarded
+in the script, so they're skipped harmlessly (only `omarchy-pkg-add` was fatal).
+
+## Builder notes
+
+For a gaming-capable ISO:
+- **Enable `[multilib]` in the image's `/etc/pacman.conf` by default** (uncomment
+  the two lines) and sync in the build.
+- **Ship `omarchy-pkg-add`** in `~/.local/bin` (or `/usr/local/bin`). Consider
+  shipping the other commonly-referenced Omarchy helpers
+  (`omarchy-install-gaming-steam`, `omarchy-hw-nvidia-*`, `omarchy-restart-walker`)
+  as shims if broad Omarchy-script compatibility is wanted.
+- This pairs naturally with shipping `gamemode` / `lib32-*` Steam deps in the
+  base if gaming is a first-class use case.
+
+This is a **package/repo-config delta** (unlike the other changes) — it touches
+the package list / pacman.conf rather than dropping a self-contained component.

os updates/gaming-enablement/install-gaming-enablement.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+# install-gaming-enablement.sh — enable the multilib repo + install the
+# omarchy-pkg-add shim, so Omarchy-targeted Steam/gaming install scripts (e.g.
+# DeckShift) work on NoSignal. Idempotent. Needs sudo for the pacman.conf edit and
+# database sync (it will prompt).
+set -eu
+
+SRC=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+BIN="$HOME/.local/bin"
+
+# 1. Enable [multilib] — the 32-bit repo every lib32-* package lives in.
+if pacman-conf --repo-list 2>/dev/null | grep -qx multilib; then
+  echo ":: [multilib] already enabled"
+else
+  echo ":: enabling [multilib] in /etc/pacman.conf (sudo)..."
+  # Uncomment ONLY the [multilib] block (leaves [multilib-testing] alone).
+  sudo sed -i '/^#\[multilib\]/,/^#Include/ s/^#//' /etc/pacman.conf
+  sudo pacman -Sy
+  echo ":: [multilib] enabled and databases synced"
+fi
+
+# 2. Omarchy CLI shims (NoSignal ships yay/caelestia, not the Omarchy helpers).
+mkdir -p "$BIN"
+for shim in omarchy-pkg-add omarchy-install-gaming-steam \
+            omarchy-hw-nvidia-gsp omarchy-hw-nvidia-without-gsp \
+            omarchy-restart-walker; do
+  install -m 0755 "$SRC/$shim" "$BIN/$shim"
+  echo ":: installed $shim -> $BIN/$shim"
+done
+
+echo "Done. multilib + Omarchy shims ready — re-run your gaming installer."

os updates/gaming-enablement/omarchy-hw-nvidia-gsp

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# omarchy-hw-nvidia-gsp — NoSignal shim. Exit 0 if an NVIDIA GPU is present (and
+# thus should use the modern, GSP-firmware driver branch: nvidia-utils). Exit 1
+# if no NVIDIA GPU. DeckShift only calls this when it has already detected an
+# NVIDIA card, to choose modern vs legacy.
+#
+# Limitation: this defaults any present NVIDIA card to the modern/GSP branch
+# (correct for Turing/RTX-20 and newer, ~2018+). It does not distinguish very
+# old pre-Turing cards — see omarchy-hw-nvidia-without-gsp.
+if lspci -d 10de:: 2>/dev/null | grep -qiE 'VGA|3D|Display'; then
+  exit 0
+fi
+exit 1

os updates/gaming-enablement/omarchy-hw-nvidia-without-gsp

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# omarchy-hw-nvidia-without-gsp — NoSignal shim. Exit 0 only for legacy pre-GSP
+# NVIDIA (Maxwell/Pascal/Volta → the nvidia-580xx driver branch).
+#
+# This shim cannot reliably tell GPU generations apart, so it defaults to the
+# modern branch (always exit 1; omarchy-hw-nvidia-gsp handles present cards). If
+# you actually run a pre-Turing NVIDIA card, install nvidia-580xx-utils /
+# nvidia-580xx-dkms by hand.
+exit 1