From 6d60f8013c8ea5e0e777a04d2fc649cff68d82fd Mon Sep 17 00:00:00 2001
From: Filippo Berto <berto.f@protonmail.com>
Date: Mon, 17 Mar 2025 20:26:20 +0100
Subject: [PATCH] GameScope script

---
 instances/odin/configuration.nix | 44 ++++++++++++++++++++++++++++++--
 1 file changed, 42 insertions(+), 2 deletions(-)

diff --git a/instances/odin/configuration.nix b/instances/odin/configuration.nix
index 4529655..3db715b 100644
--- a/instances/odin/configuration.nix
+++ b/instances/odin/configuration.nix
@@ -63,7 +63,6 @@ in
     };
   };
 
-
   programs.gamemode = {
     enable = true;
     settings = {
@@ -74,13 +73,49 @@ in
     };
   };
 
-
   programs.steam.gamescopeSession.enable = true;
   programs.gamescope = {
     enable = true;
     capSysNice = true;
   };
   services.getty.autologinUser = "tiziano";
+  environment = {
+    systemPackages = pkgs.mangohud;
+    loginShellInit =
+      let
+        gs = pkgs.writeShellScript "gs" ''
+          set -xeuo pipefail
+
+          gamescopeArgs=(
+              --adaptive-sync # VRR support
+              --hdr-enabled
+              --mangoapp # performance overlay
+              --rt
+              --steam
+          )
+          steamArgs=(
+              -pipewire-dmabuf
+              -tenfoot
+          )
+          mangoConfig=(
+              cpu_temp
+              gpu_temp
+              ram
+              vram
+          )
+          mangoVars=(
+              MANGOHUD=1
+              MANGOHUD_CONFIG="$(IFS=,; echo "''${mangoConfig[*]}")"
+          )
+
+          export "''${mangoVars[@]}"
+          exec gamescope "''${gamescopeArgs[@]}" -- steam "''${steamArgs[@]}"
+        '';
+      in
+      ''
+        [[ "''$(tty) " = " /dev/tty1 " ]] && ${gs}
+      '';
+  };
 
   services = {
     avahi = {
@@ -372,3 +407,8 @@ in
 
   system.stateVersion = "24.11";
 }
+
+
+
+
+