docs(readme): document makepkg install while AUR sign-ups are closed

README.md

@@ -102,15 +102,23 @@ too. From a checkout, `nix develop` gives you `uv`, `ruff` and the audio tools
 for the usual `uv sync` / `uv run pytest` workflow; `nix build` builds and
 tests the package.
 
-### Arch Linux (AUR)
+### Arch Linux
 
-[`beefy-player`](https://aur.archlinux.org/packages/beefy-player) is packaged in
+The `aur/PKGBUILD` here is AUR-ready, but the package is not published in the
-the AUR (`aur/PKGBUILD` here):
+AUR: the AUR has closed new sign-ups, so there is no account to push it to.
+Build and install it from a checkout instead:
 
 ```bash
-paru -S beefy-player        # or: yay -S beefy-player
+git clone https://tildeforge.dev/beefcarver/beefy-player
+cd beefy-player/aur
+makepkg -si        # needs base-devel; builds, runs the test suite, installs
 ```
 
+Once the AUR accepts new accounts again, the package can be published and
+`paru -S beefy-player` / `yay -S beefy-player` will work; until then `makepkg`
+is the only route. The `aur/PKGBUILD` is tracked and kept in sync with every
+release either way.
+
 The Python side is pulled in automatically. For audio, the output-synced
 spectrum and image passthrough through tmux, install the optional tools too: