Finish independent macOS version

SFM.System/Application.swift

@@ -4,11 +4,7 @@ import SwiftUI
 
 @main
 struct Application: App {
-    @NSApplicationDelegateAdaptor private var appDelegate: ApplicationDelegate
-
-    init() {
-        Variant.useSystemExtension = true
-    }
+    @NSApplicationDelegateAdaptor private var appDelegate: IndependentApplicationDelegate
 
     var body: some Scene {
         MacApplication()

SFM.System/IndependentApplicationDelegate.swift

@@ -0,0 +1,19 @@
+import AppKit
+import Foundation
+import Library
+import MacLibrary
+
+class IndependentApplicationDelegate: ApplicationDelegate {
+    public func applicationWillFinishLaunching(_: Notification) {
+        Variant.useSystemExtension = true
+        Task.detached {
+            if await SystemExtension.isInstalled() {
+                if let result = try await SystemExtension.install() {
+                    if result == .willCompleteAfterReboot {
+                        return
+                    }
+                }
+            }
+        }
+    }
+}