wip: switch to niri

Looks cooler c:

home/options.nix

@@ -78,23 +78,13 @@ let
     example = "/sys/class/hwmon/hwmon2/temp1_input";
   };
 
-  windowManager.options = {
-    enable = lib.mkEnableOption "window manager" // {
+  sway.options = {
+    enable = lib.mkEnableOption "sway" // {
       default = fromConfig [
         "gui"
-        "windowManager"
-        "enable"
+        "sway"
       ] true;
     };
-    windowManager = lib.mkOption {
-      description = "Which window manager to enable";
-      type = types.enum [ "niri" ];
-      default = fromConfig [
-        "gui"
-        "windowManager"
-        "windowManager"
-      ] "niri";
-    };
     background = lib.mkOption {
       description = "The wallpaper to use.";
       type = types.path;
@@ -124,6 +114,26 @@ let
       default = true;
       example = false;
     };
+    exec = lib.mkOption {
+      description = "Run commands when starting sway.";
+      default = { };
+      type = types.submodule {
+        options = {
+          once = lib.mkOption {
+            description = "Programs to start only once (`exec`).";
+            type = types.listOf types.str;
+            default = [ ];
+            example = [ "signal-desktop --start-in-tray" ];
+          };
+          always = lib.mkOption {
+            description = "Programs to start whenever the config is sourced (`exec_always`).";
+            type = types.listOf types.str;
+            default = [ ];
+            example = [ "signal-desktop --start-in-tray" ];
+          };
+        };
+      };
+    };
   };
 
   gui.options =
@@ -142,10 +152,10 @@ let
         default = null;
         type = types.nullOr (types.submodule tempInfo);
       };
-      windowManager = lib.mkOption {
-        description = "Window manager configuration.";
+      sway = lib.mkOption {
+        description = "Sway window manager configuration.";
         default = { };
-        type = types.submodule windowManager;
+        type = types.submodule sway;
       };
       terminal = lib.mkOption {
         description = "The terminal emulator to use.";

system/options.nix

@@ -37,20 +37,7 @@ let
         options.autoStart = mkDisableOption "autostarting ydotool at login";
       };
     };
-    windowManager = lib.mkOption {
-      description = "Window manager configuration";
-      default = { };
-      type = types.submodule {
-        options = {
-          enable = mkDisableOption "window manager";
-          windowManager = lib.mkOption {
-            description = "Which window manager to enable";
-            type = types.enum [ "niri" ];
-            default = "niri";
-          };
-        };
-      };
-    };
+    windowManager = mkDisableOption "window manager";
   };
 
   styling.options = {