feat: add hyprland

nixos/configuration.nix

@@ -43,7 +43,11 @@
   };
 
   # Enable flakes
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings = {
+    substituters = ["https://hyprland.cachix.org"];
+    trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
+    experimental-features = [ "nix-command" "flakes" ];
+  };
 
   services.xserver = {
     # Enable the X11 windowing system.
@@ -120,6 +124,13 @@
     polkitPolicyOwners = [ "shahab" ];
   };
 
+  # Hyprland
+  programs.hyprland = {
+    enable = true;
+    package = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.hyprland;
+    portalPackage = inputs.hyprland.packages.${pkgs.stdenv.hostPlatform.system}.xdg-desktop-portal-hyprland;
+  };
+
   virtualisation = {
     podman = {
       enable = true;