nix: Simplify

This commit removes some premature modularization to make it easier to
see and manipulate everything at once.

flake.nix

@@ -47,7 +47,7 @@
         ./user.nix
         ./desktop
         ./dev
-        ./games
+        ./games.nix
         ./host
         ./terminal
         ./containers/rar.nix

games.nix

@@ -1,7 +1,12 @@
 { pkgs, lib, ... }:
 
 {
+  programs.gamemode.enable = true;
+
   environment.systemPackages = with pkgs; [
+    (pkgs.callPackage ./packages/srb2 { })
+    slade
+    typespeed
     osu-lazer-bin
   ];
 

games/default.nix

@@ -1,14 +0,0 @@
-{ pkgs, ... }:
-
-{
-  imports = [
-    ./osu
-    ./srb2
-  ];
-
-  programs.gamemode.enable = true;
-
-  environment.systemPackages = with pkgs; [
-    typespeed
-  ];
-}

games/srb2/default.nix

@@ -1,8 +0,0 @@
-{ pkgs, ... }:
-
-{
-  environment.systemPackages = with pkgs; [
-    (pkgs.callPackage ../../packages/srb2 { })
-    slade
-  ];
-}