react-vite-typesafe/packages/web/react-router.config.ts

import type { Config } from "@react-router/dev/config";
import { type Future, Route } from "react-router";

declare module "react-router" {
  interface Future {
    unstable_middleware: true; // 👈 Enable middleware types
  }
  //AppLoadContext is replaced with the ContextAPI enabled by the unstable_middlewares flag
  // interface AppLoadContext {
  //   remove_me_i_am_a_test: string;
  // }
}

export default {
  // Config options...
  // Server-side render by default, to enable SPA mode set this to `false`
  ssr: true,
  future: {
    //TODO Keep up to date with the unstable releases over at https://reactrouter.com/changelog
    //See: https://github.com/remix-run/react-router/blob/release-next/decisions/0014-context-middleware.md
    unstable_middleware: true,
  },
} satisfies Config;