use direct sh shebang and stage location

client/ui/netbird-ui.rb.tmpl

@@ -15,17 +15,18 @@ cask "{{ $projectName }}" do
       app "netbird_ui_darwin_arm64", target: "Netbird UI.app"
   end
 
-  depends_on formula: "netbird"
+  postflight do
+    set_permissions "/Applications/netclient", '0755'
+  end
 
   installer script: {
-    executable: "installer.sh",
+    executable: "#{staged_path}/netbird_ui_darwin_amd64/installer.sh",
     sudo: true,
     must_succeed: false,
   }
 
   uninstall script: {
-    executable: "uninstaller.sh",
-    args: ["service","stop"],
+    executable: "#{staged_path}/netbird_ui_darwin_amd64/uninstaller.sh",
   }
 
   name "Netbird UI"

release_files/darwin-ui-installer.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 # check if wiretrustee is installed
 WT_BIN=$(which wiretrustee)

release_files/darwin-ui-uninstaller.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 # check if netbird is installed
 NB_BIN=$(which netbird)