Add lib.mkOpinionatedOption and use it

lib/modules.nix

@@ -1,5 +1,10 @@
-{ lib, ... }:
+{ config, lib, ... }:
 
 {
   mkRecursiveDefault = lib.mapAttrsRecursive (path: value: lib.mkDefault value);
+  mkOpinionatedOption = text: lib.mkOption {
+    type = lib.types.bool;
+    default = config.opinionatedDefaults;
+    description = lib.mdDoc "Wether to ${text}.";
+  };
 }

modules/grafana.nix

@@ -4,10 +4,8 @@ let
   cfg = config.services.grafana;
 in
 {
-  options.services.grafana.opinionatedDefaults = lib.mkOption {
-    type = lib.types.bool;
-    default = config.opinionatedDefaults;
-    description = lib.mdDoc "Wether to enable set opinionated default settings.";
+  options = {
+    services.grafana.recommendedDefaults = libS.mkOpinionatedOption "set recommended, secure default settings";
   };
 
   config = lib.mkIf cfg.enable {

modules/zfs.nix

@@ -1,11 +1,18 @@
-{ config, lib, ... }:
+{ config, lib, libS, ... }:
 
 let
   cfg = config.boot.zfs;
 in
 {
-  config = lib.mkIf cfg.enabled {
-    boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+  options = {
+    boot.zfs.recommendedDefaults = libS.mkOpinionatedOption "enable recommended ZFS settings";
+  };
+
+  config = lib.mkIf (cfg.recommendedDefaults && cfg.enabled) {
+    boot = {
+      kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+      zfs.forceImportRoot = false;
+    };
 
     services.zfs.autoScrub.enable = true;
   };