refactor

modules/darwin/tools/java/default.nix

@@ -0,0 +1,17 @@
+{ options, config, lib, pkgs, ... }:
+
+with lib;
+with lib.plusultra;
+let cfg = config.plusultra.tools.java;
+in
+{
+  options.plusultra.tools.java = with types; {
+    enable = mkBoolOpt false "Whether or not to enable Java.";
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      jdk
+    ];
+  };
+}