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NoSignal-OS/os updates/system-polish/README.md
28allday 19fd794b6b 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>
2026-06-21 11:03:10 +01:00

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NoSignal — system polish bundle

Three small quality-of-life pieces in one bundle.

A. Menu cleanup + working printing

Hidden launcher entries (per-user Hidden=true overrides in ~/.local/share/applications/ — survive package upgrades, deleting the override restores the entry):

Entry Why hidden
avahi-discover, bssh, bvnc Avahi's bundled mDNS browser tools — diagnostic clutter. The avahi-daemon itself stays (needed for .local resolution and network printer discovery)
qv4l2, qvidcap V4L2 camera test tools
foot, footclient, foot-server Caelestia's stock terminal; NoSignal uses kitty. Package stays (caelestia-meta dep) — just hidden
org.gnupg.pinentry-qt, -qt5 GPG PIN dialogs, not launchable apps

Printing: the full stack (cups + system-config-printer + avahi) is installed on the base but cups.service was disabled — so printing silently didn't work. The installer enables cups.socket (socket-activated: zero cost until something prints). Print dialogs and system-config-printer then work, with network printers auto-discovered via avahi.

B. Web-app installer

The piece of Omarchy's app story not covered by the software-install and keybinding components:

nosignal-webapp-install "WhatsApp" https://web.whatsapp.com https://example.com/icon.png
nosignal-webapp-remove  "WhatsApp"

Creates a launcher entry running chromium --app=<url> (no tabs/omnibox — feels like a native app). Icon URL optional (generic web icon otherwise). Icons live in ~/.local/share/applications/icons/.

C. First-login welcome

nosignal-welcome (started by exec-once in hypr-user.conf) shows one notification on first login pointing at the discoverability keys — Super+K keybindings, Super+Space launcher, Super+I software, Super+Ctrl+H monitors — then stamps ~/.local/state/nosignal/welcomed and never appears again. (Remove the stamp to see it again.)

Install

sh ~/Downloads/system-polish/install-system-polish.sh   # sudo only for cups.socket

Also wired into nosignal-update as migration 1781240400-system-polish.sh.

Packaging

  • Bake the hidden-entry overrides into the user skeleton, enable cups.socket in the image (systemctl enable cups.socket), ship the three scripts in ~/.local/bin, and put the welcome exec-once in the baked hypr-user.conf (don't pre-create the stamp!).
  • Optionally pre-seed a couple of web apps (e.g. YouTube, WhatsApp) by running nosignal-webapp-install in the skeleton — keep it minimal.