- NIRI_CONFIG points niri at /etc/xdg; without it niri writes its own
default config, so none of the Moonarch settings applied.
- config.kdl spawns the polkit agent by FHS path, provided via tmpfiles
instead of diverging the config shared with Arch.
- waypaper was missing entirely, hence no wallpaper. It invokes swww,
which the maintained awww provides under a different name.
moongreet hardcodes /usr/share/wayland-sessions in src/sessions.rs and
greeter.rs calls get_sessions(None, None), so the default cannot be
overridden from config.
/etc/fonts/conf.d is owned by the NixOS fontconfig module and rejects
environment.etc entries. Same content as
defaults/etc/fonts/conf.d/65-moonarch-fonts.conf.
nevaforget