Add initial sway module

modules/programs/sway.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  config,
+  options,
+  ...
+}: {
+  options.mods.sway = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+      type = lib.types.bool;
+      description = "Enables sway";
+    };
+    config = lib.mkOption {
+      default = {};
+      example = {};
+      type = with lib.types; attrsOf anything;
+      description = "sway config";
+    };
+  };
+  config = lib.mkIf config.mods.sway.enable (
+    lib.optionalAttrs (options ? wayland.windowManger) {
+      wayland.windowManager.sway =
+        {
+          enable = true;
+        }
+        // config.mods.sway.config;
+    }
+  );
+}