Separate option for gaming

hm/gaming/default.nix

@@ -0,0 +1,15 @@
+{ pkgs, lib, config, ... }:
+{
+  config = lib.mkIf config.frogeye.gaming {
+    # Using config.nixpkgs.<something> creates an infinite recursion,
+    # but the above might not be correct in case of cross-compiling?
+    home.packages = with pkgs; [
+      # gaming
+      yuzu-mainline
+      minecraft
+      # TODO factorio
+
+      steam # Common pitfall: https://github.com/NixOS/nixpkgs/issues/86506#issuecomment-623746883
+    ];
+  };
+}