Update

lib/globals.dart

@@ -2,6 +2,9 @@ import 'dart:io';
 import 'package:cookie_jar/cookie_jar.dart';
 import 'package:dio/dio.dart';
 import 'package:dio_cookie_manager/dio_cookie_manager.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:go_router/go_router.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'api/client.dart';
@@ -39,6 +42,29 @@ void initApi(String baseUrl) {
   _api = EHApi(dio, baseUrl: baseUrl);
 }
 
+bool tryInitApi(BuildContext context) {
+  bool? skipBaseUrl = const bool.fromEnvironment("skipBaseUrl");
+  if (skipBaseUrl == true) {
+    if (_api != null) {
+      return true;
+    }
+    initApi("/api");
+    return true;
+  }
+  String? baseUrl = prefs.getString("baseUrl");
+  if (baseUrl == null) {
+    SchedulerBinding.instance.addPostFrameCallback((_) {
+      context.go("/set_server");
+    });
+    return false;
+  }
+  if (_api != null && _api!.baseUrl == baseUrl) {
+    return true;
+  }
+  initApi(baseUrl);
+  return true;
+}
+
 bool get apiInited {
   return _api != null;
 }

lib/home.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/scheduler.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:go_router/go_router.dart';
 import 'package:logging/logging.dart';
@@ -15,20 +14,11 @@ class HomePage extends HookWidget {
   @override
   Widget build(BuildContext context) {
     useEffect(() {
-      String? baseUrl = prefs.getString("baseUrl");
-      if (baseUrl == null) {
-        SchedulerBinding.instance.addPostFrameCallback((_) {
-          context.go("/set_server");
-        });
-        return;
-      }
-      initApi(baseUrl);
+      if (!tryInitApi(context)) return;
       if (!auth.isAuthed) {
         auth.checkAuth().then((re) {
           if (!re) {
-            SchedulerBinding.instance.addPostFrameCallback((_) {
-              context.go(auth.status!.noUser ? "/create_root_user" : "/login");
-            });
+            context.go(auth.status!.noUser ? "/create_root_user" : "/login");
           }
         }).catchError((err) {
           _log.log(Level.SEVERE, "Failed to check auth info:", err);

lib/login.dart

@@ -70,6 +70,7 @@ class _LoginPageState extends State<LoginPage> {
 
   @override
   Widget build(BuildContext context) {
+    tryInitApi(context);
     return Scaffold(
       body: Container(
           padding: const EdgeInsets.symmetric(horizontal: 100),

lib/set_server.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:go_router/go_router.dart';
 import 'globals.dart';
@@ -61,6 +62,12 @@ class _SetServerPageState extends State<SetServerPage> {
 
   @override
   Widget build(BuildContext context) {
+    bool? skipBaseUrl = const bool.fromEnvironment("skipBaseUrl");
+    if (skipBaseUrl == true) {
+      SchedulerBinding.instance.addPostFrameCallback((_) {
+        context.go("/");
+      });
+    }
     return Scaffold(
       body: Container(
           padding: const EdgeInsets.symmetric(horizontal: 100),