Extracted editor requirements for nix

modules/lang/nix.nix

@@ -0,0 +1,16 @@
+{ config, lib, pkgs, ... }:
+let
+  this = config.my.lang.nix;
+  graphical = config.my.graphical;
+in with lib; {
+  options = {
+    my.lang.nix.enable = mkOption {
+      default = graphical.enable;
+      type = with types; bool;
+    };
+  };
+
+  config = mkIf this.enable {
+    environment.systemPackages = with pkgs; [ nixfmt rnix-lsp ];
+  };
+}