diff --git a/packages/php-wasm/progress/src/lib/progress-tracker.ts b/packages/php-wasm/progress/src/lib/progress-tracker.ts
index 52dece074d..0e9fb30f35 100644
--- a/packages/php-wasm/progress/src/lib/progress-tracker.ts
+++ b/packages/php-wasm/progress/src/lib/progress-tracker.ts
@@ -1,3 +1,23 @@
+/**
+ * CustomEvent class for NodeJS
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent
+ */
+class CustomEventNode<T = any> extends Event {
+	detail: T;
+
+	constructor(type: string, customEventInit?: CustomEventInit<T>) {
+		super(type, customEventInit);
+		this.detail = customEventInit?.detail
+			? customEventInit.detail
+			: ({} as T);
+	}
+}
+
+if (typeof CustomEvent === 'undefined') {
+	// @ts-expect-error
+	globalThis.CustomEvent = CustomEventNode;
+}
+
 /**
  * Options for customizing the progress tracker.
  */
diff --git a/packages/playground/blueprints/src/lib/steps/common.ts b/packages/playground/blueprints/src/lib/steps/common.ts
index 0dae687f47..20bb29147a 100644
--- a/packages/playground/blueprints/src/lib/steps/common.ts
+++ b/packages/playground/blueprints/src/lib/steps/common.ts
@@ -24,6 +24,18 @@ export async function updateFile(
 export async function fileToUint8Array(file: File) {
 	return new Uint8Array(await file.arrayBuffer());
 }
+/**
+ * File class for NodeJS
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/File
+ */
+class FileNode {
+	// NodeJS has no File class
+}
+
+if (typeof File === 'undefined') {
+	// @ts-expect-error
+	globalThis.File = FileNode;
+}
 
 /**
  * Polyfill the File class in JSDOM which lacks arrayBuffer() method