fix: Wayland fixes

- Use 144hz.
- Fix XAuthority issues.

modules/nixos/niri.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, ... }@inputs:
 
 let
   cfg = config.sydnix.niri;
@@ -7,7 +7,11 @@ in {
     lib.mkEnableOption "Niri";
 
   config = lib.mkIf cfg.enable {
-    programs.niri.enable = true;
+    nixpkgs.overlays = [ inputs.niri.overlays.niri ];
+    programs.niri = {
+      enable = true;
+      package = pkgs.niri-unstable;
+    };
     
     # Necessary for e.g. screensharing.
     xdg.portal = {