Added assertions

nixarr/readarr/default.nix

@@ -8,7 +8,16 @@ with lib; let
   nixarr = config.nixarr;
 in {
   options.nixarr.readarr = {
-    enable = mkEnableOption "Enable the Readarr service";
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      example = true;
+      description = ''
+        Whether or not to enable the Readarr service.
+
+        **Required options:** [`nixarr.enable`](#nixarr.enable)
+      '';
+    };
 
     stateDir = mkOption {
       type = types.path;
@@ -51,6 +60,13 @@ in {
 
   config = mkIf cfg.enable {
     assertions = [
+      {
+        assertion = cfg.enable -> nixarr.enable;
+        message = ''
+          The nixarr.readarr.enable option requires the
+          nixarr.enable option to be set, but it was not.
+        '';
+      }
       {
         assertion = cfg.vpn.enable -> nixarr.vpn.enable;
         message = ''