refactor

modules/nixos/apps/r2modman/default.nix

@@ -0,0 +1,18 @@
+{ options
+, config
+, lib
+, pkgs
+, ...
+}:
+with lib;
+with lib.plusultra; let
+  cfg = config.plusultra.apps.r2modman;
+in
+{
+  options.plusultra.apps.r2modman = with types; {
+    enable = mkBoolOpt false "Whether or not to enable r2modman.";
+  };
+
+  config =
+    mkIf cfg.enable { environment.systemPackages = with pkgs; [ r2modman ]; };
+}