Reorganize imports

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/user/gui/gaming/default.nix

@@ -0,0 +1,85 @@
+{
+  user ? throw "user argument is required",
+  home ? throw "home argument is required",
+}:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  environment.persistence."/persist" = {
+    "${home}/.steam" = { };
+    "${home}/.local/share/Steam" = { };
+  };
+
+  programs = {
+    steam = {
+      enable = true;
+      localNetworkGameTransfers.openFirewall = true;
+      extest.enable = true;
+      protontricks.enable = true;
+    };
+
+    gamescope = {
+      enable = true;
+      args = [
+        "--rt"
+        "-f"
+      ];
+    };
+
+    gamemode.enable = true;
+  };
+
+  home-manager.users.${user} = {
+    systemd.user = {
+      services.steam-ln =
+        let
+          steamLn = lib.meta.getExe (
+            pkgs.writeShellApplication {
+              name = "steam-ln";
+              runtimeInputs = with pkgs; [ coreutils ];
+              text = builtins.readFile ./scripts/steam-ln.sh;
+            }
+          );
+        in
+        {
+          Unit = {
+            Description = "Sync Steam games with Games directory";
+            After = [
+              config.environment.persistence."/persist"."${home}/.local/share/Steam".mount
+              config.environment.persistence."/persist"."${home}/Games".mount
+            ];
+            DefaultDependencies = false;
+          };
+
+          Service = {
+            ExecStart = steamLn;
+            Type = "oneshot";
+          };
+
+          Install.WantedBy = [ "graphical-session.target" ];
+        };
+
+      paths.steam-ln = {
+        Unit = {
+          Description = "Monitor Steam games directory for changes";
+          After = [
+            config.environment.persistence."/persist"."${home}/.local/share/Steam".mount
+            config.environment.persistence."/persist"."${home}/Games".mount
+          ];
+        };
+
+        Path.PathChanged = "${home}/.local/share/Steam/steamapps/common";
+        Install.WantedBy = [ "graphical-session.target" ];
+      };
+    };
+
+    home = {
+      packages = with pkgs; [ protonup ];
+      sessionVariables.STEAM_EXTRA_COMPAT_TOOLS_PATHS = "${home}/.steam/root/compatibilitytools.d";
+    };
+  };
+}