Gaming: enable mangohud

roles/gaming/mangohud.nix

@@ -0,0 +1,19 @@
+{ config, ... }:
+
+{
+	# This does the same as enableSessionWide does on the mangohud config
+	environment.sessionVariables = { MANGOHUD = "1"; MANGOHUD_DLSYM = "1"; };
+
+	home-manager.users.toast = { config, ... }:
+	{
+		programs.mangohud = {
+			enable = true;
+			# TODO: fix envvars set by home manager not applying for some reason
+			# This only works for Vulkan, openGL programs still need the mangohud wrapper
+			enableSessionWide = true;
+			settings = {
+				preset = 4;
+			};
+		};
+	};
+}