hyprland, fix nix-shell version and add firefox

modules/cli-tools.nix

@@ -17,6 +17,5 @@
     ffmpeg
     nethogs
     dig
-    nss-tools
   ];
 }

modules/graphical/hyprland.nix

@@ -1,7 +1,7 @@
 { config, pkgs, lib, inputs, ... }:
 
 let
-  patchedWaybar = pkgs.waybar.overrideAttrs (oldAttrs: {
+  patchedWaybar = pkgs.unstable.waybar.overrideAttrs (oldAttrs: {
       mesonFlags = oldAttrs.mesonFlags ++ [ "-Dexperimental=true" ];
   });
 

modules/graphical/shared.nix

@@ -17,6 +17,7 @@ in
 
   fonts.fontDir.enable = true;
   fonts.packages = with pkgs; [
+    corefonts
     nerdfonts
     noto-fonts
     noto-fonts-emoji

modules/nix/settings.nix

@@ -1,4 +1,8 @@
+{ inputs, config, ... }:
 {
   nix.optimise.automatic = true;
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
-}
+  nix.registry.nixpkgs.flake = inputs.nixpkgs;
+  nix.nixPath = ["nixpkgs=flake:nixpkgs"];
+  home-manager.users.${config.mainUser.name}.home.sessionVariables.NIX_PATH = "nixpkgs=flake:nixpkgs$\{NIX_PATH:+:$NIX_PATH}";
+}