From 74770fd01db40528d17f877a4b37e7ddbd0bcf13 Mon Sep 17 00:00:00 2001
From: reidlab <reidlab325@gmail.com>
Date: Mon, 8 Jun 2026 20:38:33 -0700
Subject: [PATCH] Game scope

---
 hosts/flubber-machine/default.nix       |  1 +
 modules/software/distractions/steam.nix | 22 ++++++++++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/hosts/flubber-machine/default.nix b/hosts/flubber-machine/default.nix
index 08532f4..b7d5e61 100755
--- a/hosts/flubber-machine/default.nix
+++ b/hosts/flubber-machine/default.nix
@@ -111,6 +111,7 @@
       distractions.discord.enable = true;
       distractions.discord.vesktop = true;
       distractions.steam.enable = true;
+      distractions.steam.gamescope = true;
       # tools
       tools.direnv.enable = true;
       tools.easyeffects.enable = true;
diff --git a/modules/software/distractions/steam.nix b/modules/software/distractions/steam.nix
index bd127c6..1c4d58d 100644
--- a/modules/software/distractions/steam.nix
+++ b/modules/software/distractions/steam.nix
@@ -6,6 +6,7 @@ let
 in {
   options.modules.software.distractions.steam = {
     enable = mkEnableOption "Enable Steam, the game distribution software";
+    gamescope = mkEnableOption "Enable gamescope, a mini-compositor tuned for games";
     session = mkEnableOption "Enable a Steam Deck-like session powered by gamescope";
   };
 
@@ -16,7 +17,7 @@ in {
       package = pkgs.steam.override {
         # required for programs to run sometimes
         # see: https://github.com/NixOS/nixpkgs/issues/162562#issuecomment-1229444338
-        extraPkgs = (pkgs: with pkgs; [
+        extraPkgs = (pkgs: (optional cfg.gamescope pkgs.gamescope) ++ (with pkgs; [
           libXcursor
           libXi
           libXinerama
@@ -28,7 +29,7 @@ in {
           libkrb5
           keyutils
           gperftools
-        ]);
+        ]));
         extraEnv = {
           # https://github.com/gloriouseggroll/proton-ge-custom
           PROTON_USE_WAYLAND = "1";
@@ -45,6 +46,23 @@ in {
       dedicatedServer.openFirewall = true;
     };
 
+    programs.gamescope = {
+      enable = cfg.gamescope;
+      args = [
+        "--expose-wayland"
+
+        "--adaptive-sync"
+
+        "-f"
+
+        "-W 1920"
+        "-H 1080"
+
+        "-w 1920"
+        "-h 1080"
+      ];
+    };
+
     # enable windows NT sync primitive driver (semaphores, mutexes, etc.)
     # improves performance on wine 11+ and proton 11+
     boot.kernelModules = [ "ntsync" ];