2: Added printer support and added osu and mangohud

system/modules/default.nix

@@ -19,5 +19,7 @@
     ./nixos-cli.nix
     ./vmware.nix
     ./lanzaboote.nix
+    ./gaming.nix
+    ./printing.nix
   ];
 }

system/modules/gaming.nix

@@ -0,0 +1,11 @@
+{pkgs, ... }: {
+  programs.steam = {
+    enable = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    heroic
+    mangohud
+    osu-lazer
+  ];
+}

system/modules/printing.nix

@@ -0,0 +1,12 @@
+{pkgs, ... }: {
+  services.printing = {
+    enable = true;
+    drivers = [pkgs.hplip pkgs.hplipWithPlugin];
+  };
+
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    openFirewall = true;
+  };
+}