refactor(dev): use ENV var to enable hub dev mode

beszel/internal/hub/hub.go

@@ -77,13 +77,12 @@ func GetEnv(key string) (value string, exists bool) {
 }
 
 func (h *Hub) Run() {
-	// loosely check if it was executed using "go run"
-	isGoRun := strings.HasPrefix(os.Args[0], os.TempDir())
+	isDev := os.Getenv("ENV") == "dev"
 
 	// enable auto creation of migration files when making collection changes in the Admin UI
 	migratecmd.MustRegister(h, h.RootCmd, migratecmd.Config{
-		// (the isGoRun check is to enable it only during development)
-		Automigrate: isGoRun,
+		// (the isDev check is to enable it only during development)
+		Automigrate: isDev,
 		Dir:         "../../migrations",
 	})
 
@@ -132,7 +131,7 @@ func (h *Hub) Run() {
 
 	// serve web ui
 	h.OnServe().BindFunc(func(se *core.ServeEvent) error {
-		switch isGoRun {
+		switch isDev {
 		case true:
 			proxy := httputil.NewSingleHostReverseProxy(&url.URL{
 				Scheme: "http",