# Install scripts using Nix to achieve cross-distros
- This directory is currently WIP.
- See also [Install scripts | illogical-impulse](https://ii.clsty.link/en/dev/inst-script/)
- See also [#1061](https://github.com/end-4/dots-hyprland/issues/1061)

**NOTE: The sdata/dist-nix is not for NixOS but every distro, using Nix and home-manager.**

## plan
Note that this script must be idempotent.

TODO:
- [ ] Fix all TODOs inside `dist-nix`.
- [ ] Warn user if inode-limited filesystem (typically ext4) is used.
- [ ] Deal with error when running `systemctl --user enable ydotool --now`:
  ```plain
  Failed to connect to user scope bus via local transport: $DBUS_SESSION_BUS_ADDRESS and $XDG_RUNTIME_DIR not defined (consider using --machine=<user>@.host --user to connect to bus of other user)
  ```

## Attentions
### PAM
On non-NixOS distros, programs using PAM (typically screen locker) will not work if installed via Nix, so user has to use their own distro's package for the screen lock.

- One problem is that Debian(-based) distros use modified version of PAM which supports `@include` directive in `/etc/pam.d` config files but the PAM from Nix does not support it, see [this comment](https://github.com/NixOS/nixpkgs/issues/128523#issuecomment-1086106614).
- Another problem is the location of a suid helper binary that is necessary, see [this comment](https://github.com/end-4/dots-hyprland/issues/1061#issuecomment-3403195230).

The problem could be solved by using the system-provided libpam instead.

See also https://github.com/caelestia-dots/shell/issues/668

### NixGL
On non-NixOS distros, packages installed via home-manager have problem accessing GPU, especially Hyprland because it requires GPU acceleration to launch. `nixGL` should be used to address the problem.