From b404639e764a8b1ea6413d98ccdecb67c7b03036 Mon Sep 17 00:00:00 2001
From: Kabbone <tobias@opel-online.de>
Date: Thu, 27 Jul 2023 21:28:57 +0200
Subject: [PATCH] hosts: steamdeck: disable gnome for now

---
 modules/desktop/gnome/default.nix | 52 +++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/modules/desktop/gnome/default.nix b/modules/desktop/gnome/default.nix
index fb6d93e..104d886 100644
--- a/modules/desktop/gnome/default.nix
+++ b/modules/desktop/gnome/default.nix
@@ -43,15 +43,63 @@
 
     services = {
       xserver = {
-        enable = true;
+        enable = false;
         desktopManager.gnome.enable = true;
         displayManager = {
           gdm.wayland = true;
-          defaultSession = "steam-wayland";
+        #  defaultSession = "steam-wayland";
           autoLogin.enable = true;
           autoLogin.user = "kabbone";
         };
       };
     };
 
+    systemd.services.gamescope-switcher = {
+      wantedBy = [ "graphical.target" ];
+      serviceConfig = {
+        User = 2000;
+        PAMName = "login";
+        WorkingDirectory = "~";
+  
+        TTYPath = "/dev/tty7";
+        TTYReset = "yes";
+        TTYVHangup = "yes";
+        TTYVTDisallocate = "yes";
+  
+        StandardInput = "tty-fail";
+        StandardOutput = "journal";
+        StandardError = "journal";
+  
+        UtmpIdentifier = "tty7";
+        UtmpMode = "user";
+  
+        Restart = "always";
+      };
+  
+      script = ''
+        set-session () {
+          mkdir -p ~/.local/state
+          >~/.local/state/steamos-session-select echo "$1"
+        }
+        consume-session () {
+          if [[ -e ~/.local/state/steamos-session-select ]]; then
+            cat ~/.local/state/steamos-session-select
+            rm ~/.local/state/steamos-session-select
+          else
+            echo "gamescope"
+          fi
+        }
+        while :; do
+          session=$(consume-session)
+          case "$session" in
+            plasma)
+              dbus-run-session -- gnome-shell --display-server --wayland
+              ;;
+            gamescope)
+              steam-session
+              ;;
+          esac
+        done
+      '';
+    };
 }