Release distribution checklist: Arch, Fedora COPR, Debian, Nix

[inayayousfi]

Tracking issue for everything that still needs to happen to actually distribute Axidev OSK through native package channels, now that the in-tree packaging scaffolding has landed (v0.13.1, 267c317).

Out of scope for this checklist: Flatpak (#5) and Windows installer (#1) remain tracked separately.

Fedora (COPR)

• create a axide-dev/axidev-osk Fedora COPR project under the organization
• wire the COPR build to consume the release source archive (axidev-osk-v<version>-source.zip) or a git checkout at the release tag
• confirm the spec at `packaging/rpm/axidev-osk.spec` builds cleanly in COPR for current Fedora targets (at least the latest stable Fedora)
• document `dnf copr enable axide-dev/axidev-osk && sudo dnf install axidev-osk` in the README install section
• decide on automatic vs manual COPR rebuild on each release tag and document the chosen flow
• add a release-time check or note so new versions actually get pushed to COPR

Arch (AUR)

• create/confirm the AUR maintainer account used to publish for the project
• decide final package name (`axidev-osk` source build vs `axidev-osk-bin` consuming the Linux release tarball, or both)
• finalize `packaging/arch/PKGBUILD` accordingly (sources, checksums strategy, dependency list)
• submit the package to AUR
• document install instructions for Arch users in the README
• define how new releases get pushed to AUR (manual bump vs automated) and document it

Debian / Ubuntu

• decide on distribution channel: hosted APT repo, GitHub-released `.deb`, or both
• verify `packaging/deb/debian/` builds a working `.deb` against current Debian stable and current Ubuntu LTS
• if hosting an APT repo: pick hosting (e.g. GitHub Pages + `reprepro`/`aptly`), set up a signing key, document key trust steps
• document install instructions for Debian/Ubuntu users in the README
• decide how new releases produce a new `.deb` (CI job vs manual) and document it

Nix

• verify `flake.nix` evaluates and builds on current `nixos-unstable`
• verify the NixOS module in `packaging/nix/module.nix` enables the app correctly (udev rule, `input` group, launcher)
• document `nix run github:axide-dev/axidev-osk` and module usage in the README
• decide whether to push the package to nixpkgs eventually, or keep it flake-only for now

Per-distro install testing

For each release, install the relevant native artifact end-to-end on a clean environment and confirm the app launches and types into a focused window:

• Fedora (latest stable) via COPR
• Arch via AUR
• Debian stable via `.deb` / APT repo
• Ubuntu LTS via `.deb` / APT repo
• NixOS via flake / module
• generic Linux via `/opt/axidev-osk` installer (`packaging/linux/install.sh`)

Each test should also confirm:

• `/dev/uinput` permissions work without manual chmod after install
• uninstall path leaves the system clean (no dangling launcher, udev rule, or files under `/opt/axidev-osk`)
• upgrade from the previous release does not break a running setup

Documentation

• update README install section once each channel is actually live (not before)
• keep `packaging/README.md` in sync with the chosen channels