diff --git a/dwds/lib/asset_reader.dart b/dwds/lib/asset_reader.dart
index 9066a04b1..578849f30 100644
--- a/dwds/lib/asset_reader.dart
+++ b/dwds/lib/asset_reader.dart
@@ -3,4 +3,4 @@
 // BSD-style license that can be found in the LICENSE file.
 
 export 'src/readers/asset_reader.dart'
-    show AssetReader, UrlEncoder, PackageUriMapper, stripLeadingSlashes;
+    show AssetReader, PackageUriMapper, stripLeadingSlashes;
diff --git a/dwds/lib/config.dart b/dwds/lib/config.dart
new file mode 100644
index 000000000..e21c7f494
--- /dev/null
+++ b/dwds/lib/config.dart
@@ -0,0 +1,7 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+export 'src/config/app_metadata.dart' show AppMetadata;
+export 'src/config/debug_settings.dart'
+    show UrlEncoder, DevToolsLauncher, DebugSettings;
diff --git a/dwds/lib/dart_web_debug_service.dart b/dwds/lib/dart_web_debug_service.dart
index b68e07416..4ff176e65 100644
--- a/dwds/lib/dart_web_debug_service.dart
+++ b/dwds/lib/dart_web_debug_service.dart
@@ -5,6 +5,8 @@
 import 'dart:async';
 
 import 'package:dwds/data/build_result.dart';
+import 'package:dwds/src/config/app_metadata.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/connections/app_connection.dart';
 import 'package:dwds/src/connections/debug_connection.dart';
 import 'package:dwds/src/events.dart';
@@ -15,7 +17,6 @@ import 'package:dwds/src/loaders/strategy.dart';
 import 'package:dwds/src/readers/asset_reader.dart';
 import 'package:dwds/src/servers/devtools.dart';
 import 'package:dwds/src/servers/extension_backend.dart';
-import 'package:dwds/src/services/expression_compiler.dart';
 import 'package:dwds/src/utilities/globals.dart';
 import 'package:logging/logging.dart';
 import 'package:shelf/shelf.dart';
@@ -67,35 +68,18 @@ class Dwds {
     required Stream<BuildResult> buildResults,
     required ConnectionProvider chromeConnection,
     required LoadStrategy loadStrategy,
-    required bool enableDebugging,
-    // TODO(annagrin): make expressionCompiler argument required
-    // [issue 881](https://github.com/dart-lang/webdev/issues/881)
-    ExpressionCompiler? expressionCompiler,
-    bool enableDebugExtension = false,
-    String hostname = 'localhost',
-    bool useSseForDebugProxy = true,
-    bool useSseForDebugBackend = true,
-    bool useSseForInjectedClient = true,
-    UrlEncoder? urlEncoder,
-    bool spawnDds = true,
-    // TODO(elliette): DevTools is inconsistently capitalized throughout this
-    // file. Change all occurrences of devtools/Devtools to devTools/DevTools.
-    bool enableDevtoolsLaunch = true,
-    DevtoolsLauncher? devtoolsLauncher,
-    bool launchDevToolsInNewWindow = true,
-    bool emitDebugEvents = true,
-    bool isInternalBuild = false,
-    Future<bool> Function()? isFlutterApp,
+    required DebugSettings debugSettings,
+    required AppMetadata appMetadata,
   }) async {
     globalLoadStrategy = loadStrategy;
-    globalIsInternalBuild = isInternalBuild;
-    isFlutterApp ??= () => Future.value(true);
+    globalAppMetadata = appMetadata;
+    globalDebugSettings = debugSettings;
 
     DevTools? devTools;
     Future<String>? extensionUri;
     ExtensionBackend? extensionBackend;
-    if (enableDebugExtension) {
-      final handler = useSseForDebugBackend
+    if (debugSettings.enableDebugExtension) {
+      final handler = debugSettings.useSseForDebugBackend
           ? SseSocketHandler(
               SseHandler(
                 Uri.parse('/\$debug'),
@@ -108,34 +92,32 @@ class Dwds {
             )
           : WebSocketSocketHandler();
 
-      extensionBackend = await ExtensionBackend.start(handler, hostname);
+      extensionBackend =
+          await ExtensionBackend.start(handler, appMetadata.hostname);
       extensionUri = Future.value(
         Uri(
-          scheme: useSseForDebugBackend ? 'http' : 'ws',
+          scheme: debugSettings.useSseForDebugBackend ? 'http' : 'ws',
           host: extensionBackend.hostname,
           port: extensionBackend.port,
           path: r'$debug',
         ).toString(),
       );
-      if (urlEncoder != null) extensionUri = urlEncoder(await extensionUri);
+      final urlEncoder = debugSettings.urlEncoder;
+      if (urlEncoder != null) {
+        extensionUri = urlEncoder(await extensionUri);
+      }
     }
 
-    final serveDevTools = devtoolsLauncher != null;
-    if (serveDevTools) {
-      devTools = await devtoolsLauncher(hostname);
+    final devToolsLauncher = debugSettings.devToolsLauncher;
+    if (devToolsLauncher != null) {
+      devTools = await devToolsLauncher(appMetadata.hostname);
       final uri =
           Uri(scheme: 'http', host: devTools.hostname, port: devTools.port);
       _logger.info('Serving DevTools at $uri\n');
     }
 
     final injected = DwdsInjector(
-      loadStrategy,
-      useSseForInjectedClient: useSseForInjectedClient,
       extensionUri: extensionUri,
-      enableDevtoolsLaunch: enableDevtoolsLaunch,
-      emitDebugEvents: emitDebugEvents,
-      isInternalBuild: isInternalBuild,
-      isFlutterApp: isFlutterApp,
     );
 
     final devHandler = DevHandler(
@@ -143,15 +125,15 @@ class Dwds {
       buildResults,
       devTools,
       assetReader,
-      hostname,
+      appMetadata.hostname,
       extensionBackend,
-      urlEncoder,
-      useSseForDebugProxy,
-      useSseForInjectedClient,
-      expressionCompiler,
+      debugSettings.urlEncoder,
+      debugSettings.useSseForDebugProxy,
+      debugSettings.useSseForInjectedClient,
+      debugSettings.expressionCompiler,
       injected,
-      spawnDds,
-      launchDevToolsInNewWindow,
+      debugSettings.spawnDds,
+      debugSettings.launchDevToolsInNewWindow,
     );
 
     return Dwds._(
@@ -159,7 +141,7 @@ class Dwds {
       devTools,
       devHandler,
       assetReader,
-      enableDebugging,
+      debugSettings.enableDebugging,
     );
   }
 }
diff --git a/dwds/lib/dwds.dart b/dwds/lib/dwds.dart
index 3b67f1a14..66ac4e664 100644
--- a/dwds/lib/dwds.dart
+++ b/dwds/lib/dwds.dart
@@ -3,6 +3,9 @@
 // BSD-style license that can be found in the LICENSE file.
 
 export 'dart_web_debug_service.dart' show Dwds, ConnectionProvider;
+export 'src/config/app_metadata.dart' show AppMetadata;
+export 'src/config/debug_settings.dart'
+    show UrlEncoder, DevToolsLauncher, DebugSettings;
 export 'src/connections/app_connection.dart' show AppConnection;
 export 'src/connections/debug_connection.dart' show DebugConnection;
 export 'src/debugging/metadata/provider.dart'
@@ -17,8 +20,7 @@ export 'src/loaders/frontend_server_require.dart'
 export 'src/loaders/legacy.dart' show LegacyStrategy;
 export 'src/loaders/require.dart' show RequireStrategy;
 export 'src/loaders/strategy.dart' show LoadStrategy, ReloadConfiguration;
-export 'src/readers/asset_reader.dart'
-    show AssetReader, UrlEncoder, PackageUriMapper;
+export 'src/readers/asset_reader.dart' show AssetReader, PackageUriMapper;
 export 'src/readers/frontend_server_asset_reader.dart'
     show FrontendServerAssetReader;
 export 'src/readers/proxy_server_asset_reader.dart' show ProxyServerAssetReader;
diff --git a/dwds/lib/src/config/app_metadata.dart b/dwds/lib/src/config/app_metadata.dart
new file mode 100644
index 000000000..424e08b6a
--- /dev/null
+++ b/dwds/lib/src/config/app_metadata.dart
@@ -0,0 +1,18 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// Metadata for the connected app.
+///
+/// These are set by the code runner and passed to DWDS on start up.
+class AppMetadata {
+  final String hostname;
+  final bool isInternalBuild;
+  Future<bool> Function() isFlutterApp;
+
+  AppMetadata({
+    this.hostname = 'localhost',
+    this.isInternalBuild = false,
+    Future<bool> Function()? isFlutterApp,
+  }) : isFlutterApp = isFlutterApp ?? (() => Future.value(true));
+}
diff --git a/dwds/lib/src/config/debug_settings.dart b/dwds/lib/src/config/debug_settings.dart
new file mode 100644
index 000000000..d6f178224
--- /dev/null
+++ b/dwds/lib/src/config/debug_settings.dart
@@ -0,0 +1,45 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:dwds/src/servers/devtools.dart';
+import 'package:dwds/src/services/expression_compiler.dart';
+
+typedef UrlEncoder = Future<String> Function(String url);
+
+typedef DevToolsLauncher = Future<DevTools> Function(String hostname);
+
+/// Debug settings for the connected app.
+///
+/// These are set by the code runner and passed to DWDS on start up.
+class DebugSettings {
+  final bool enableDebugging;
+  final bool enableDebugExtension;
+  final bool useSseForDebugProxy;
+  final bool useSseForDebugBackend;
+  final bool useSseForInjectedClient;
+  final bool spawnDds;
+  final bool enableDevToolsLaunch;
+  final bool launchDevToolsInNewWindow;
+  final bool emitDebugEvents;
+  final DevToolsLauncher? devToolsLauncher;
+  // TODO(annagrin): make expressionCompiler argument required
+  // [issue 881](https://github.com/dart-lang/webdev/issues/881)
+  final ExpressionCompiler? expressionCompiler;
+  final UrlEncoder? urlEncoder;
+
+  DebugSettings({
+    required this.enableDebugging,
+    this.enableDebugExtension = false,
+    this.useSseForDebugProxy = true,
+    this.useSseForDebugBackend = true,
+    this.useSseForInjectedClient = true,
+    this.spawnDds = true,
+    this.enableDevToolsLaunch = true,
+    this.launchDevToolsInNewWindow = true,
+    this.emitDebugEvents = true,
+    this.devToolsLauncher,
+    this.expressionCompiler,
+    this.urlEncoder,
+  });
+}
diff --git a/dwds/lib/src/handlers/dev_handler.dart b/dwds/lib/src/handlers/dev_handler.dart
index 51c634ac6..ff634da76 100644
--- a/dwds/lib/src/handlers/dev_handler.dart
+++ b/dwds/lib/src/handlers/dev_handler.dart
@@ -14,6 +14,7 @@ import 'package:dwds/data/error_response.dart';
 import 'package:dwds/data/isolate_events.dart';
 import 'package:dwds/data/register_event.dart';
 import 'package:dwds/data/serializers.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/connections/app_connection.dart';
 import 'package:dwds/src/connections/debug_connection.dart';
 import 'package:dwds/src/debugging/execution_context.dart';
diff --git a/dwds/lib/src/handlers/injector.dart b/dwds/lib/src/handlers/injector.dart
index a8dc6b570..9b28d39a0 100644
--- a/dwds/lib/src/handlers/injector.dart
+++ b/dwds/lib/src/handlers/injector.dart
@@ -8,7 +8,7 @@ import 'dart:io';
 import 'dart:isolate';
 
 import 'package:crypto/crypto.dart';
-import 'package:dwds/src/loaders/strategy.dart';
+import 'package:dwds/src/utilities/globals.dart';
 import 'package:dwds/src/version.dart';
 import 'package:logging/logging.dart';
 import 'package:shelf/shelf.dart';
@@ -28,30 +28,13 @@ const _clientScript = 'dwds/src/injected/client';
 /// Handles injecting the DWDS client and embedding debugging related
 /// information.
 class DwdsInjector {
-  final LoadStrategy _loadStrategy;
   final Future<String>? _extensionUri;
   final _devHandlerPaths = StreamController<String>();
   final _logger = Logger('DwdsInjector');
-  final bool _enableDevtoolsLaunch;
-  final bool _useSseForInjectedClient;
-  final bool _emitDebugEvents;
-  final bool _isInternalBuild;
-  final Future<bool> Function() _isFlutterApp;
 
-  DwdsInjector(
-    this._loadStrategy, {
-    required bool enableDevtoolsLaunch,
-    required bool useSseForInjectedClient,
-    required bool emitDebugEvents,
-    required bool isInternalBuild,
-    required Future<bool> Function() isFlutterApp,
+  DwdsInjector({
     Future<String>? extensionUri,
-  })  : _extensionUri = extensionUri,
-        _enableDevtoolsLaunch = enableDevtoolsLaunch,
-        _useSseForInjectedClient = useSseForInjectedClient,
-        _emitDebugEvents = emitDebugEvents,
-        _isInternalBuild = isInternalBuild,
-        _isFlutterApp = isFlutterApp;
+  }) : _extensionUri = extensionUri;
 
   /// Returns the embedded dev handler paths.
   ///
@@ -97,7 +80,7 @@ class DwdsInjector {
               final appId = base64
                   .encode(md5.convert(utf8.encode('$requestedUri')).bytes);
               var scheme = request.requestedUri.scheme;
-              if (!_useSseForInjectedClient) {
+              if (!globalDebugSettings.useSseForInjectedClient) {
                 // Switch http->ws and https->wss.
                 scheme = scheme.replaceFirst('http', 'ws');
               }
@@ -112,20 +95,15 @@ class DwdsInjector {
               devHandlerPath = '$requestedUriBase/$devHandlerPath';
               _devHandlerPaths.add(devHandlerPath);
               final entrypoint = request.url.path;
-              _loadStrategy.trackEntrypoint(entrypoint);
-              body = _injectClientAndHoistMain(
+              globalLoadStrategy.trackEntrypoint(entrypoint);
+              body = await _injectClientAndHoistMain(
                 body,
                 appId,
                 devHandlerPath,
                 entrypoint,
                 await _extensionUri,
-                _loadStrategy,
-                _enableDevtoolsLaunch,
-                _emitDebugEvents,
-                _isInternalBuild,
-                await _isFlutterApp(),
               );
-              body += await _loadStrategy.bootstrapFor(entrypoint);
+              body += await globalLoadStrategy.bootstrapFor(entrypoint);
               _logger.info('Injected debugging metadata for '
                   'entrypoint at $requestedUri');
               etag = base64.encode(md5.convert(body.codeUnits).bytes);
@@ -136,7 +114,7 @@ class DwdsInjector {
             }
             return response.change(body: body, headers: newHeaders);
           } else {
-            final loadResponse = await _loadStrategy.handler(request);
+            final loadResponse = await globalLoadStrategy.handler(request);
             if (loadResponse.statusCode != HttpStatus.notFound) {
               return loadResponse;
             }
@@ -148,18 +126,13 @@ class DwdsInjector {
 
 /// Returns the provided body with the main function hoisted into a global
 /// variable and a snippet of JS that loads the injected client.
-String _injectClientAndHoistMain(
+Future<String> _injectClientAndHoistMain(
   String body,
   String appId,
   String devHandlerPath,
   String entrypointPath,
   String? extensionUri,
-  LoadStrategy loadStrategy,
-  bool enableDevtoolsLaunch,
-  bool emitDebugEvents,
-  bool isInternalBuild,
-  bool isFlutterApp,
-) {
+) async {
   final bodyLines = body.split('\n');
   final extensionIndex =
       bodyLines.indexWhere((line) => line.contains(mainExtensionMarker));
@@ -171,16 +144,11 @@ String _injectClientAndHoistMain(
   // We inject the client in the entry point module as the client expects the
   // application to be in a ready state, that is the main function is hoisted
   // and the Dart SDK is loaded.
-  final injectedClientSnippet = _injectedClientSnippet(
+  final injectedClientSnippet = await _injectedClientSnippet(
     appId,
     devHandlerPath,
     entrypointPath,
     extensionUri,
-    loadStrategy,
-    enableDevtoolsLaunch,
-    emitDebugEvents,
-    isInternalBuild,
-    isFlutterApp,
   );
   result += '''
   // Injected by dwds for debugging support.
@@ -207,29 +175,25 @@ String _injectClientAndHoistMain(
 }
 
 /// JS snippet which includes global variables required for debugging.
-String _injectedClientSnippet(
+Future<String> _injectedClientSnippet(
   String appId,
   String devHandlerPath,
   String entrypointPath,
   String? extensionUri,
-  LoadStrategy loadStrategy,
-  bool enableDevtoolsLaunch,
-  bool emitDebugEvents,
-  bool isInternalBuild,
-  bool isFlutterApp,
-) {
+) async {
+  final isFlutterApp = await globalAppMetadata.isFlutterApp();
   var injectedBody = 'window.\$dartAppId = "$appId";\n'
-      'window.\$dartReloadConfiguration = "${loadStrategy.reloadConfiguration}";\n'
-      'window.\$dartModuleStrategy = "${loadStrategy.id}";\n'
-      'window.\$loadModuleConfig = ${loadStrategy.loadModuleSnippet};\n'
+      'window.\$dartReloadConfiguration = "${globalLoadStrategy.reloadConfiguration}";\n'
+      'window.\$dartModuleStrategy = "${globalLoadStrategy.id}";\n'
+      'window.\$loadModuleConfig = ${globalLoadStrategy.loadModuleSnippet};\n'
       'window.\$dwdsVersion = "$packageVersion";\n'
       'window.\$dwdsDevHandlerPath = "$devHandlerPath";\n'
-      'window.\$dwdsEnableDevtoolsLaunch = $enableDevtoolsLaunch;\n'
+      'window.\$dwdsEnableDevToolsLaunch = ${globalDebugSettings.enableDevToolsLaunch};\n'
       'window.\$dartEntrypointPath = "$entrypointPath";\n'
-      'window.\$dartEmitDebugEvents = $emitDebugEvents;\n'
-      'window.\$isInternalBuild = $isInternalBuild;\n'
+      'window.\$dartEmitDebugEvents = ${globalDebugSettings.emitDebugEvents};\n'
+      'window.\$isInternalBuild = ${globalAppMetadata.isInternalBuild};\n'
       'window.\$isFlutterApp = $isFlutterApp;\n'
-      '${loadStrategy.loadClientSnippet(_clientScript)}';
+      '${globalLoadStrategy.loadClientSnippet(_clientScript)}';
   if (extensionUri != null) {
     injectedBody += 'window.\$dartExtensionUri = "$extensionUri";\n';
   }
diff --git a/dwds/lib/src/readers/asset_reader.dart b/dwds/lib/src/readers/asset_reader.dart
index 896eb527e..a6a6fa21e 100644
--- a/dwds/lib/src/readers/asset_reader.dart
+++ b/dwds/lib/src/readers/asset_reader.dart
@@ -7,8 +7,6 @@ import 'package:file/file.dart';
 import 'package:logging/logging.dart';
 import 'package:package_config/package_config.dart';
 
-typedef UrlEncoder = Future<String> Function(String url);
-
 /// A reader for Dart sources and related source maps.
 abstract class AssetReader {
   /// Base path of the application, for example, set up in the index file:
diff --git a/dwds/lib/src/servers/devtools.dart b/dwds/lib/src/servers/devtools.dart
index e1deb70e7..579957dff 100644
--- a/dwds/lib/src/servers/devtools.dart
+++ b/dwds/lib/src/servers/devtools.dart
@@ -4,8 +4,6 @@
 
 import 'dart:io';
 
-typedef DevtoolsLauncher = Future<DevTools> Function(String hostname);
-
 /// A server for Dart Devtools.
 class DevTools {
   final String hostname;
diff --git a/dwds/lib/src/services/debug_service.dart b/dwds/lib/src/services/debug_service.dart
index 5976e7e22..740e9ae3b 100644
--- a/dwds/lib/src/services/debug_service.dart
+++ b/dwds/lib/src/services/debug_service.dart
@@ -9,6 +9,7 @@ import 'dart:math';
 import 'dart:typed_data';
 
 import 'package:dds/dds.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/connections/app_connection.dart';
 import 'package:dwds/src/debugging/execution_context.dart';
 import 'package:dwds/src/debugging/remote_debugger.dart';
diff --git a/dwds/lib/src/utilities/dart_uri.dart b/dwds/lib/src/utilities/dart_uri.dart
index 5cdb44f43..d2ab99d1c 100644
--- a/dwds/lib/src/utilities/dart_uri.dart
+++ b/dwds/lib/src/utilities/dart_uri.dart
@@ -144,7 +144,7 @@ class DartUri {
     if (packageUri != null) return packageUri;
 
     // If this is an internal app, then the given uri might be g3-relative:
-    if (globalIsInternalBuild) {
+    if (globalAppMetadata.isInternalBuild) {
       // TODO(https://github.com/dart-lang/webdev/issues/2198): Verify if the
       // intermediary conversion to resolvedUri is causing performance issues.
       final resolvedUri = _g3RelativeUriToResolvedUri[uri];
@@ -185,7 +185,7 @@ class DartUri {
   static void recordAbsoluteUris(Iterable<String> libraryUris) {
     for (var uri in libraryUris) {
       _recordAbsoluteUri(uri);
-      if (globalIsInternalBuild) {
+      if (globalAppMetadata.isInternalBuild) {
         _recordG3RelativeUri(uri);
       }
     }
diff --git a/dwds/lib/src/utilities/globals.dart b/dwds/lib/src/utilities/globals.dart
index d8881dfd2..6e81d1716 100644
--- a/dwds/lib/src/utilities/globals.dart
+++ b/dwds/lib/src/utilities/globals.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+import 'package:dwds/src/config/app_metadata.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/loaders/strategy.dart';
 
 /// The load strategy for the connected app.
@@ -9,8 +11,13 @@ late LoadStrategy _globalLoadStrategy;
 set globalLoadStrategy(LoadStrategy strategy) => _globalLoadStrategy = strategy;
 LoadStrategy get globalLoadStrategy => _globalLoadStrategy;
 
-/// Whether or not the connected app is an internal (e.g. google3) app.
-bool get globalIsInternalBuild => _isInternalBuild ?? false;
-bool? _isInternalBuild;
-set globalIsInternalBuild(bool isInternalBuild) =>
-    _isInternalBuild = isInternalBuild;
+/// The debug settings for the connected app.
+late DebugSettings _globalDebugSettings;
+set globalDebugSettings(DebugSettings settings) =>
+    _globalDebugSettings = settings;
+DebugSettings get globalDebugSettings => _globalDebugSettings;
+
+/// Metadata for the connected app.
+late AppMetadata _globalAppMetadata;
+set globalAppMetadata(AppMetadata metadata) => _globalAppMetadata = metadata;
+AppMetadata get globalAppMetadata => _globalAppMetadata;
diff --git a/dwds/test/dart_uri_test.dart b/dwds/test/dart_uri_test.dart
index 55978ba3b..eb645d44c 100644
--- a/dwds/test/dart_uri_test.dart
+++ b/dwds/test/dart_uri_test.dart
@@ -6,6 +6,7 @@
 @Timeout(Duration(minutes: 2))
 
 import 'package:dwds/asset_reader.dart';
+import 'package:dwds/src/config/app_metadata.dart';
 import 'package:dwds/src/utilities/dart_uri.dart';
 import 'package:dwds/src/utilities/globals.dart';
 import 'package:path/path.dart' as p;
@@ -206,13 +207,13 @@ void main() {
 
     setUpAll(() async {
       await DartUri.initialize();
-      globalIsInternalBuild = true;
+      globalAppMetadata = AppMetadata(isInternalBuild: false);
       DartUri.recordAbsoluteUris(['package:path/path.dart']);
     });
 
     tearDownAll(() {
       DartUri.clear();
-      globalIsInternalBuild = false;
+      globalAppMetadata = AppMetadata(isInternalBuild: false);
     });
 
     test(
diff --git a/dwds/test/fixtures/context.dart b/dwds/test/fixtures/context.dart
index c926ca082..76e3c9ba7 100644
--- a/dwds/test/fixtures/context.dart
+++ b/dwds/test/fixtures/context.dart
@@ -10,6 +10,7 @@ import 'package:build_daemon/data/build_status.dart';
 import 'package:build_daemon/data/build_target.dart';
 import 'package:dwds/asset_reader.dart';
 import 'package:dwds/expression_compiler.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/connections/app_connection.dart';
 import 'package:dwds/src/connections/debug_connection.dart';
 import 'package:dwds/src/debugging/webkit_debugger.dart';
diff --git a/dwds/test/fixtures/server.dart b/dwds/test/fixtures/server.dart
index 6396e8566..f40d28bbf 100644
--- a/dwds/test/fixtures/server.dart
+++ b/dwds/test/fixtures/server.dart
@@ -10,6 +10,8 @@ import 'package:dwds/asset_reader.dart';
 import 'package:dwds/dart_web_debug_service.dart';
 import 'package:dwds/data/build_result.dart';
 import 'package:dwds/expression_compiler.dart';
+import 'package:dwds/src/config/app_metadata.dart';
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/loaders/require.dart';
 import 'package:dwds/src/servers/devtools.dart';
 import 'package:dwds/src/services/expression_compiler_service.dart';
@@ -108,30 +110,34 @@ class TestServer {
       buildResults: filteredBuildResults,
       chromeConnection: chromeConnection,
       loadStrategy: strategy,
-      spawnDds: spawnDds,
-      enableDebugExtension: enableDebugExtension,
-      enableDebugging: enableDebugging,
-      useSseForDebugProxy: useSse,
-      useSseForDebugBackend: useSse,
-      useSseForInjectedClient: useSse,
-      hostname: hostname,
-      urlEncoder: urlEncoder,
-      expressionCompiler: expressionCompiler,
-      isInternalBuild: isInternalBuild,
-      isFlutterApp: () => Future.value(isFlutterApp),
-      devtoolsLauncher: serveDevTools
-          ? (hostname) async {
-              final server = await DevToolsServer().serveDevTools(
-                hostname: hostname,
-                enableStdinCommands: false,
-                customDevToolsPath: sdkLayout.devToolsDirectory,
-              );
-              if (server == null) {
-                throw StateError('DevTools server could not be started.');
+      debugSettings: DebugSettings(
+        spawnDds: spawnDds,
+        enableDebugExtension: enableDebugExtension,
+        enableDebugging: enableDebugging,
+        useSseForDebugProxy: useSse,
+        useSseForDebugBackend: useSse,
+        useSseForInjectedClient: useSse,
+        urlEncoder: urlEncoder,
+        expressionCompiler: expressionCompiler,
+        devToolsLauncher: serveDevTools
+            ? (hostname) async {
+                final server = await DevToolsServer().serveDevTools(
+                  hostname: hostname,
+                  enableStdinCommands: false,
+                  customDevToolsPath: sdkLayout.devToolsDirectory,
+                );
+                if (server == null) {
+                  throw StateError('DevTools server could not be started.');
+                }
+                return DevTools(server.address.host, server.port, server);
               }
-              return DevTools(server.address.host, server.port, server);
-            }
-          : null,
+            : null,
+      ),
+      appMetadata: AppMetadata(
+        hostname: hostname,
+        isInternalBuild: isInternalBuild,
+        isFlutterApp: () => Future.value(isFlutterApp),
+      ),
     );
 
     final server = await startHttpServer('localhost', port: port);
diff --git a/dwds/test/handlers/injector_test.dart b/dwds/test/handlers/injector_test.dart
index 073bffa61..238c4cfcf 100644
--- a/dwds/test/handlers/injector_test.dart
+++ b/dwds/test/handlers/injector_test.dart
@@ -6,32 +6,24 @@
 
 import 'dart:io';
 
+import 'package:dwds/src/config/debug_settings.dart';
 import 'package:dwds/src/handlers/injector.dart';
+import 'package:dwds/src/utilities/globals.dart';
 import 'package:dwds/src/version.dart';
 import 'package:http/http.dart' as http;
 import 'package:shelf/shelf.dart';
 import 'package:shelf/shelf_io.dart' as shelf_io;
 import 'package:test/test.dart';
 
-import '../fixtures/fakes.dart';
-
 void main() {
   late HttpServer server;
   const entryEtag = 'entry etag';
   const nonEntryEtag = 'some etag';
-  final loadStrategy = FakeStrategy(FakeAssetReader());
 
   group('InjectedHandlerWithoutExtension', () {
     late DwdsInjector injector;
     setUp(() async {
-      injector = DwdsInjector(
-        loadStrategy,
-        useSseForInjectedClient: true,
-        enableDevtoolsLaunch: true,
-        emitDebugEvents: true,
-        isInternalBuild: false,
-        isFlutterApp: () => Future.value(true),
-      );
+      injector = DwdsInjector();
       final pipeline = const Pipeline().addMiddleware(injector.middleware);
       server = await shelf_io.serve(
         pipeline.addHandler((request) {
@@ -237,7 +229,7 @@ void main() {
           'http://localhost:${server.port}/entrypoint$bootstrapJsExtension',
         ),
       );
-      expect(result.body.contains('dwdsEnableDevtoolsLaunch'), isTrue);
+      expect(result.body.contains('dwdsEnableDevToolsLaunch'), isTrue);
     });
 
     test('Delegates to strategy handler', () async {
@@ -304,14 +296,11 @@ void main() {
   group('InjectedHandlerWithoutExtension using WebSockets', () {
     late DwdsInjector injector;
     setUp(() async {
-      injector = DwdsInjector(
-        loadStrategy,
+      globalDebugSettings = DebugSettings(
+        enableDebugging: true,
         useSseForInjectedClient: false,
-        enableDevtoolsLaunch: true,
-        emitDebugEvents: true,
-        isInternalBuild: false,
-        isFlutterApp: () => Future.value(true),
       );
+      injector = DwdsInjector();
       final pipeline = const Pipeline().addMiddleware(injector.middleware);
       server = await shelf_io.serve(
         pipeline.addHandler((request) {
@@ -378,13 +367,7 @@ void main() {
       final extensionUri = 'http://localhost:4000';
       final pipeline = const Pipeline().addMiddleware(
         DwdsInjector(
-          loadStrategy,
           extensionUri: Future.value(extensionUri),
-          useSseForInjectedClient: true,
-          enableDevtoolsLaunch: true,
-          emitDebugEvents: true,
-          isInternalBuild: false,
-          isFlutterApp: () => Future.value(true),
         ).middleware,
       );
       server = await shelf_io.serve(
diff --git a/dwds/web/client.dart b/dwds/web/client.dart
index 740688208..51a0a251f 100644
--- a/dwds/web/client.dart
+++ b/dwds/web/client.dart
@@ -169,7 +169,7 @@ Future<void>? main() {
       },
     );
 
-    if (dwdsEnableDevtoolsLaunch) {
+    if (dwdsEnableDevToolsLaunch) {
       window.onKeyDown.listen((Event e) {
         if (e is KeyboardEvent &&
             const [
@@ -337,8 +337,8 @@ external String get reloadConfiguration;
 @JS(r'$dartEntrypointPath')
 external String get dartEntrypointPath;
 
-@JS(r'$dwdsEnableDevtoolsLaunch')
-external bool get dwdsEnableDevtoolsLaunch;
+@JS(r'$dwdsEnableDevToolsLaunch')
+external bool get dwdsEnableDevToolsLaunch;
 
 @JS('window.top.document.dispatchEvent')
 external void dispatchEvent(CustomEvent event);
diff --git a/frontend_server_common/lib/src/asset_server.dart b/frontend_server_common/lib/src/asset_server.dart
index 784e634f9..b63b6e05e 100644
--- a/frontend_server_common/lib/src/asset_server.dart
+++ b/frontend_server_common/lib/src/asset_server.dart
@@ -10,6 +10,7 @@ import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:dwds/asset_reader.dart';
+import 'package:dwds/config.dart';
 import 'package:file/file.dart';
 import 'package:logging/logging.dart';
 import 'package:mime/mime.dart' as mime;
diff --git a/frontend_server_common/lib/src/devfs.dart b/frontend_server_common/lib/src/devfs.dart
index c0c7f371d..64e3e4512 100644
--- a/frontend_server_common/lib/src/devfs.dart
+++ b/frontend_server_common/lib/src/devfs.dart
@@ -5,6 +5,7 @@
 // Note: this is a copy from flutter tools, updated to work with dwds tests
 
 import 'package:dwds/asset_reader.dart';
+import 'package:dwds/config.dart';
 import 'package:file/file.dart';
 import 'package:path/path.dart' as p;
 import 'package:test_common/test_sdk_layout.dart';
diff --git a/frontend_server_common/lib/src/resident_runner.dart b/frontend_server_common/lib/src/resident_runner.dart
index fdf2e6b1c..e1931fdec 100644
--- a/frontend_server_common/lib/src/resident_runner.dart
+++ b/frontend_server_common/lib/src/resident_runner.dart
@@ -8,6 +8,7 @@
 import 'dart:async';
 
 import 'package:dwds/asset_reader.dart';
+import 'package:dwds/config.dart';
 import 'package:dwds/expression_compiler.dart';
 import 'package:file/file.dart';
 import 'package:logging/logging.dart';
diff --git a/webdev/lib/src/serve/webdev_server.dart b/webdev/lib/src/serve/webdev_server.dart
index b4ef287a1..bd956a0c4 100644
--- a/webdev/lib/src/serve/webdev_server.dart
+++ b/webdev/lib/src/serve/webdev_server.dart
@@ -145,17 +145,12 @@ class WebDevServer {
       var shouldServeDevTools =
           options.configuration.debug || options.configuration.debugExtension;
       dwds = await Dwds.start(
-          hostname: options.configuration.hostname,
-          assetReader: assetReader,
-          buildResults: filteredBuildResults,
-          chromeConnection: () async =>
-              (await Chrome.connectedInstance).chromeConnection,
-          loadStrategy: loadStrategy,
+        debugSettings: DebugSettings(
           enableDebugExtension: options.configuration.debugExtension,
           enableDebugging: options.configuration.debug,
           spawnDds: !options.configuration.disableDds,
           expressionCompiler: ddcService,
-          devtoolsLauncher: shouldServeDevTools
+          devToolsLauncher: shouldServeDevTools
               ? (String hostname) async {
                   var server = await DevToolsServer().serveDevTools(
                     hostname: hostname,
@@ -164,7 +159,17 @@ class WebDevServer {
                   );
                   return DevTools(server!.address.host, server.port, server);
                 }
-              : null);
+              : null,
+        ),
+        appMetadata: AppMetadata(
+          hostname: options.configuration.hostname,
+        ),
+        assetReader: assetReader,
+        buildResults: filteredBuildResults,
+        chromeConnection: () async =>
+            (await Chrome.connectedInstance).chromeConnection,
+        loadStrategy: loadStrategy,
+      );
       pipeline = pipeline.addMiddleware(dwds.middleware);
       cascade = cascade.add(dwds.handler);
       cascade = cascade.add(assetHandler);