diff --git a/src/app/app.ts b/src/app/app.ts
index 0ec70068..f671d9c9 100644
--- a/src/app/app.ts
+++ b/src/app/app.ts
@@ -10,7 +10,7 @@ export interface Env {
   [key: string]: any;
 }
 
-interface Config {
+export interface AppConfig {
   dev?: boolean;
   env?: Env;
   translatableAttributes?: string[];
@@ -35,7 +35,7 @@ export class App<T extends typeof Component = any> extends TemplateSet {
     this.props = props;
   }
 
-  configure(config: Config): App<T> {
+  configure(config: AppConfig): App<T> {
     if (config.dev) {
       this.dev = config.dev;
       console.info(DEV_MSG);
diff --git a/src/index.ts b/src/index.ts
index 4d3a3a37..5a0ffa07 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -31,6 +31,7 @@ export const blockDom = {
   html,
 };
 
+import type { AppConfig } from "./app/app";
 import { App } from "./app/app";
 import { Component } from "./component/component";
 import { getCurrent } from "./component/component_node";
@@ -39,10 +40,11 @@ export { App, Component };
 
 export async function mount<T extends typeof Component>(
   C: T,
-  target: HTMLElement
+  target: HTMLElement,
+  config: AppConfig = {}
 ): Promise<InstanceType<T>> {
   const app = new App(C);
-  return app.mount(target);
+  return app.configure(config).mount(target);
 }
 
 export function useComponent(): Component {