nosignal/NoSignal-OS
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NoSignal-OS/os updates/software-install/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 — software installation

The base ships pacman only: no AUR helper and no GUI store, even though ~750 of the base packages come from the AUR. NoSignal gives users a complete way to install software.

The model

Layer Tool Who it's for
Plumbing yay (AUR helper) terminal users: yay -S <pkg>, yay <search>; also what nosignal-update uses for upgrades
App store Shelly (shelly-bin) everyone: GUI package manager on Super+I — official repos + AUR + Flathub + AppImage in one UI
Flatpak backend flatpak + Flathub remote sandboxed/proprietary desktop apps via Shelly's flatpak pages

Shelly is a GTK4 package manager built directly on libalpm (pacman's own library). CachyOS adopted it as their default GUI package manager in April 2026. The shelly-bin AUR package (maintained by the Shelly author) installs:

  • shelly-ui — the GUI (what Super+I launches; also in the app launcher as "Shelly")
  • shelly — the CLI
  • shelly-notifications — tray service for update notifications (started via exec-once in the appended Hyprland config)

Files

File Role
install-software-install.sh idempotent installer — bootstraps yay if missing, installs shelly-bin + flatpak + archlinux-appstream-data, adds the Flathub remote, appends the bind
hyprland-software-install.conf Super+I bind + shelly-notifications autostart → appended to ~/.config/caelestia/hypr-user.conf 
sh ~/Downloads/software-install/install-software-install.sh

Also wired into nosignal-update as migration 1781222400-software-install.sh.

Packaging

Bake the packages into the base instead of installing post-hoc:

  • Add to the package list: yay-bin (or yay), shelly-bin, flatpak, archlinux-appstream-data. This also satisfies the change-3 recommendation ("ship an AUR helper").
  • Preconfigure the Flathub remote (flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo) in the image build or firstboot.
  • The Super+I bind + notifier autostart land via hypr-user.conf like the other NoSignal binds.

Caveats

  • Shelly is young (rapid 1.x → 2.x churn through 2026); pin shelly-bin updates to nosignal-update runs like everything else. CachyOS shipping it as default is a reasonable endorsement.
  • shelly-bin lists fish as an optdepend for shell completions only — not a reason to keep fish.