diff --git a/web/src/app/browser/src/context/pageIntegrationHandlers.ts b/web/src/app/browser/src/context/pageIntegrationHandlers.ts
index 056a0ee91d..3a997d9392 100644
--- a/web/src/app/browser/src/context/pageIntegrationHandlers.ts
+++ b/web/src/app/browser/src/context/pageIntegrationHandlers.ts
@@ -1,6 +1,6 @@
 import { DomEventTracker } from 'keyman/engine/events';
 
-import KeymanEngine from "../keymanEngine.js";
+import { KeymanEngine } from "../keymanEngine.js";
 import { FocusAssistant } from './focusAssistant.js';
 import { RotationProcessor } from '../utils/rotationProcessor.js';
 
diff --git a/web/src/app/browser/src/debug-main.ts b/web/src/app/browser/src/debug-main.ts
index efb32cde19..973e0d7efc 100644
--- a/web/src/app/browser/src/debug-main.ts
+++ b/web/src/app/browser/src/debug-main.ts
@@ -1,4 +1,4 @@
-import KeymanEngine from './keymanEngine.js'
+import { KeymanEngine } from './keymanEngine.js'
 import { SourcemappedWorker } from '@keymanapp/lexical-model-layer/web'
 
  /**
diff --git a/web/src/app/browser/src/keyboardInterface.ts b/web/src/app/browser/src/keyboardInterface.ts
index 9607c7a92d..e9b0bda379 100644
--- a/web/src/app/browser/src/keyboardInterface.ts
+++ b/web/src/app/browser/src/keyboardInterface.ts
@@ -3,7 +3,7 @@ import { FloatingOSKView } from 'keyman/engine/osk';
 import { KeyboardInterface as KeyboardInterfaceBase } from 'keyman/engine/main';
 
 import ContextManager from './contextManager.js';
-import KeymanEngine from './keymanEngine.js';
+import { KeymanEngine } from './keymanEngine.js';
 
 export default class KeyboardInterface extends KeyboardInterfaceBase<ContextManager> {
   constructor(
diff --git a/web/src/app/browser/src/keymanEngine.ts b/web/src/app/browser/src/keymanEngine.ts
index ca2ac8ba95..59987035cc 100644
--- a/web/src/app/browser/src/keymanEngine.ts
+++ b/web/src/app/browser/src/keymanEngine.ts
@@ -1,5 +1,5 @@
 import { KeymanWebKeyboard } from '@keymanapp/common-types';
-import { KeymanEngine as KeymanEngineBase, DeviceDetector } from 'keyman/engine/main';
+import { KeymanEngineBase, DeviceDetector } from 'keyman/engine/main';
 import { getAbsoluteY } from 'keyman/engine/dom-utils';
 import { OutputTarget } from 'keyman/engine/element-wrappers';
 import {
@@ -29,7 +29,7 @@ import { BeepHandler } from './beepHandler.js';
 import KeyboardInterface from './keyboardInterface.js';
 import { WorkerFactory } from '@keymanapp/lexical-model-layer/web';
 
-export default class KeymanEngine extends KeymanEngineBase<BrowserConfiguration, ContextManager, HardwareEventKeyboard> {
+export class KeymanEngine extends KeymanEngineBase<BrowserConfiguration, ContextManager, HardwareEventKeyboard> {
   touchLanguageMenu?: LanguageMenu;
   private pageIntegration: PageIntegrationHandlers;
 
diff --git a/web/src/app/browser/src/languageMenu.ts b/web/src/app/browser/src/languageMenu.ts
index 1fd4de76ef..0549d9850a 100644
--- a/web/src/app/browser/src/languageMenu.ts
+++ b/web/src/app/browser/src/languageMenu.ts
@@ -2,7 +2,7 @@
 import { getAbsoluteX, landscapeView } from "keyman/engine/dom-utils";
 import { KeyboardStub } from "keyman/engine/keyboard-storage";
 
-import KeymanEngine from "./keymanEngine.js";
+import { KeymanEngine } from "./keymanEngine.js";
 import * as util from "./utils/index.js";
 
 interface KeyboardTag {
diff --git a/web/src/app/browser/src/oskConfiguration.ts b/web/src/app/browser/src/oskConfiguration.ts
index 154b969865..d9f5764671 100644
--- a/web/src/app/browser/src/oskConfiguration.ts
+++ b/web/src/app/browser/src/oskConfiguration.ts
@@ -1,7 +1,7 @@
 import { OSKView } from "keyman/engine/osk";
 import { KEYMAN_VERSION } from "@keymanapp/keyman-version";
 import ContextManager from "./contextManager.js";
-import KeymanEngine from "./keymanEngine.js";
+import { KeymanEngine } from "./keymanEngine.js";
 import { LanguageMenu } from "./languageMenu.js";
 
 export function setupOskListeners(engine: KeymanEngine, osk: OSKView, contextManager: ContextManager) {
diff --git a/web/src/app/browser/src/release-main.ts b/web/src/app/browser/src/release-main.ts
index 2261d185c4..faf96e9097 100644
--- a/web/src/app/browser/src/release-main.ts
+++ b/web/src/app/browser/src/release-main.ts
@@ -1,4 +1,4 @@
-import KeymanEngine from './keymanEngine.js'
+import { KeymanEngine } from './keymanEngine.js'
 import { Worker } from '@keymanapp/lexical-model-layer/web'
 
  /**
diff --git a/web/src/app/browser/src/test-index.ts b/web/src/app/browser/src/test-index.ts
index 47d3591311..408b47cba6 100644
--- a/web/src/app/browser/src/test-index.ts
+++ b/web/src/app/browser/src/test-index.ts
@@ -2,6 +2,6 @@ export { BrowserConfiguration, BrowserInitOptionSpec } from './configuration.js'
 export { default as ContextManager, KeyboardCookie } from "./contextManager.js";
 export { preprocessKeyboardEvent, default as HardwareEventKeyboard } from './hardwareEventKeyboard.js';
 
-export { default as KeymanEngine } from './keymanEngine.js';
+export { KeymanEngine } from './keymanEngine.js';
 export { default as KeyboardInterface } from './keyboardInterface.js';
 export { UIModule } from './uiModuleInterface.js';
diff --git a/web/src/app/browser/src/utils/rotationProcessor.ts b/web/src/app/browser/src/utils/rotationProcessor.ts
index f9d573b765..07e1c1b202 100644
--- a/web/src/app/browser/src/utils/rotationProcessor.ts
+++ b/web/src/app/browser/src/utils/rotationProcessor.ts
@@ -1,4 +1,4 @@
-import KeymanEngine from "../keymanEngine.js";
+import { KeymanEngine } from "../keymanEngine.js";
 
 class RotationState {
   innerWidth: number;
diff --git a/web/src/app/browser/src/viewsAnchorpoint.ts b/web/src/app/browser/src/viewsAnchorpoint.ts
index 8db8781f2c..0c1015505b 100644
--- a/web/src/app/browser/src/viewsAnchorpoint.ts
+++ b/web/src/app/browser/src/viewsAnchorpoint.ts
@@ -5,7 +5,7 @@ import {
   FloatingOSKViewConfiguration,
   InlinedOSKView
 } from "keyman/engine/osk";
-import KeymanEngine from "./keymanEngine.js";
+import { KeymanEngine } from "./keymanEngine.js";
 
 function buildBaseOskConfiguration(engine: KeymanEngine) {
   return {
diff --git a/web/src/app/webview/src/debug-main.ts b/web/src/app/webview/src/debug-main.ts
index 3e7c7270ec..646c8f1687 100644
--- a/web/src/app/webview/src/debug-main.ts
+++ b/web/src/app/webview/src/debug-main.ts
@@ -1,4 +1,4 @@
-import KeymanEngine from './keymanEngine.js'
+import { KeymanEngine } from './keymanEngine.js'
 import { SourcemappedWorker } from '@keymanapp/lexical-model-layer/web'
 
  /**
diff --git a/web/src/app/webview/src/keymanEngine.ts b/web/src/app/webview/src/keymanEngine.ts
index 84390d51f2..8db2951c1b 100644
--- a/web/src/app/webview/src/keymanEngine.ts
+++ b/web/src/app/webview/src/keymanEngine.ts
@@ -1,6 +1,6 @@
 import { DeviceSpec, DefaultRules } from 'keyman/engine/keyboard';
 import { RuleBehavior } from 'keyman/engine/js-processor';
-import { KeymanEngine as KeymanEngineBase, KeyboardInterface } from 'keyman/engine/main';
+import { KeymanEngineBase, KeyboardInterface } from 'keyman/engine/main';
 import { AnchoredOSKView, ViewConfiguration, StaticActivator } from 'keyman/engine/osk';
 import { getAbsoluteX, getAbsoluteY } from 'keyman/engine/dom-utils';
 import { toPrefixedKeyboardId, toUnprefixedKeyboardId } from 'keyman/engine/keyboard-storage';
@@ -11,7 +11,7 @@ import PassthroughKeyboard from './passthroughKeyboard.js';
 import { buildEmbeddedGestureConfig, setupEmbeddedListeners } from './oskConfiguration.js';
 import { WorkerFactory } from '@keymanapp/lexical-model-layer';
 
-export default class KeymanEngine extends KeymanEngineBase<WebviewConfiguration, ContextManager, PassthroughKeyboard> {
+export class KeymanEngine extends KeymanEngineBase<WebviewConfiguration, ContextManager, PassthroughKeyboard> {
   // Ideally, we would be able to auto-detect `sourceUri`: https://stackoverflow.com/a/60244278.
   // But it's too new of a feature to utilize... and also expects to be in a module, when this may
   // be compiled down to an IIFE.
diff --git a/web/src/app/webview/src/oskConfiguration.ts b/web/src/app/webview/src/oskConfiguration.ts
index 9250b5a2a1..cd0bdd9b4f 100644
--- a/web/src/app/webview/src/oskConfiguration.ts
+++ b/web/src/app/webview/src/oskConfiguration.ts
@@ -3,7 +3,7 @@ import { DeviceSpec } from "keyman/engine/keyboard";
 import { type EmbeddedGestureConfig } from "keyman/engine/osk";
 
 import { GlobeHint } from './osk/globeHint.js';
-import type KeymanEngine from "./keymanEngine.js";
+import { type KeymanEngine }  from "./keymanEngine.js";
 
 export function setupEmbeddedListeners(engine: KeymanEngine, osk: OSKView) {
   osk.on('globekey', (key, on) => {
diff --git a/web/src/app/webview/src/release-main.ts b/web/src/app/webview/src/release-main.ts
index fd8bcd8dce..ba70bfef9b 100644
--- a/web/src/app/webview/src/release-main.ts
+++ b/web/src/app/webview/src/release-main.ts
@@ -1,4 +1,4 @@
-import KeymanEngine from './keymanEngine.js'
+import { KeymanEngine } from './keymanEngine.js'
 import { Worker } from '@keymanapp/lexical-model-layer/web'
 
  /**
diff --git a/web/src/engine/main/src/index.ts b/web/src/engine/main/src/index.ts
index 558b800769..bd1f33513c 100644
--- a/web/src/engine/main/src/index.ts
+++ b/web/src/engine/main/src/index.ts
@@ -2,7 +2,7 @@ export { EngineConfiguration, InitOptionDefaults, InitOptionSpec } from './engin
 export { ContextManagerBase, ContextManagerConfiguration } from './contextManagerBase.js';
 export { HardKeyboardBase, processForMnemonicsAndLegacy } from './hardKeyboardBase.js';
 export { default as KeyboardInterface } from './keyboardInterface.js';
-export { default as KeymanEngine } from './keymanEngine.js';
+export { KeymanEngineBase } from './keymanEngineBase.js';
 export { LegacyAPIEvents } from './legacyAPIEvents.js';
 export { VariableStoreCookieSerializer } from './variableStoreCookieSerializer.js';
 export { LanguageProcessor } from './headless/languageProcessor.js';
diff --git a/web/src/engine/main/src/keyboardInterface.ts b/web/src/engine/main/src/keyboardInterface.ts
index 4996ecb55a..59d7c22954 100644
--- a/web/src/engine/main/src/keyboardInterface.ts
+++ b/web/src/engine/main/src/keyboardInterface.ts
@@ -6,16 +6,16 @@ import KeyboardObject = KeymanWebKeyboard.KeyboardObject;
 
 import { ContextManagerBase } from './contextManagerBase.js';
 import { VariableStoreCookieSerializer } from "./variableStoreCookieSerializer.js";
-import KeymanEngine from "./keymanEngine.js";
+import { KeymanEngineBase } from "./keymanEngineBase.js";
 import { EngineConfiguration } from "./engineConfiguration.js";
 
 export default class KeyboardInterface<ContextManagerType extends ContextManagerBase<any>> extends KeyboardInterfaceBase {
-  protected readonly engine: KeymanEngine<EngineConfiguration, ContextManagerType, any>;
+  protected readonly engine: KeymanEngineBase<EngineConfiguration, ContextManagerType, any>;
   private stubNamespacer?: (stub: RawKeyboardStub) => void;
 
   constructor(
     _jsGlobal: any,
-    engine: KeymanEngine<any, ContextManagerType, any>,
+    engine: KeymanEngineBase<any, ContextManagerType, any>,
     stubNamespacer?: (stub: RawKeyboardStub) => void
   ) {
     super(_jsGlobal, engine, new VariableStoreCookieSerializer());
diff --git a/web/src/engine/main/src/keymanEngine.ts b/web/src/engine/main/src/keymanEngineBase.ts
similarity index 99%
rename from web/src/engine/main/src/keymanEngine.ts
rename to web/src/engine/main/src/keymanEngineBase.ts
index 9c6a1bd8a9..22a0d55631 100644
--- a/web/src/engine/main/src/keymanEngine.ts
+++ b/web/src/engine/main/src/keymanEngineBase.ts
@@ -35,7 +35,7 @@ function determineBaseLayout(): string {
 export type KeyEventFullResultCallback = (result: RuleBehavior, error?: Error) => void;
 export type KeyEventFullHandler = (event: KeyEvent, callback?: KeyEventFullResultCallback) => void;
 
-export default class KeymanEngine<
+export class KeymanEngineBase<
   Configuration extends EngineConfiguration,
   ContextManager extends ContextManagerBase<any>,
   HardKeyboard extends HardKeyboardBase
@@ -117,7 +117,7 @@ export default class KeymanEngine<
     workerFactory: WorkerFactory,
     config: Configuration,
     contextManager: ContextManager,
-    processorConfigInitializer: (engine: KeymanEngine<Configuration, ContextManager, HardKeyboard>) => ProcessorConfiguration
+    processorConfigInitializer: (engine: KeymanEngineBase<Configuration, ContextManager, HardKeyboard>) => ProcessorConfiguration
   ) {
     this.config = config;
     this.contextManager = contextManager;