feat: speed up walker startup

modules/capabilities/walker.nix

@@ -38,10 +38,19 @@ in
     };
 
   flake.modules.homeManager.primary-launcher-walker =
-    { config, lib, ... }:
+    {
+      config,
+      lib,
+      pkgs,
+      ...
+    }:
     {
       imports = [ homeModules.walker-base ];
 
-      facts.desktop.launcherCommand = lib.getExe config.programs.walker.package;
+      facts.desktop.launcherCommand = [
+        (lib.getExe' pkgs.libressl.nc "nc")
+        "-U"
+        "/run/user/1000/walker/walker.sock"
+      ];
     };
 }