feat: split config more

modules/nixos/usecases/development/svelte.nix

@@ -0,0 +1,19 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.usecases.development.svelte;
+in
+{
+  options.usecases.development.svelte = {
+    enable = mkEnableOption "Enable Svelte develompent";
+  };
+
+  config = mkIf cfg.enable {
+    networking.firewall.allowedTCPPorts = [
+      5073
+      5173
+    ];
+  };
+}