work-timer/app/routes/index.tsx

import type { LoaderArgs } from '@remix-run/node';
import { json, redirect } from '@remix-run/node';

import { getUserId } from '~/session.server';

export async function loader({ request }: LoaderArgs) {
  const userId = await getUserId(request);
  if (userId) return redirect('/time-entries');
  return json({});
}

export default function Index() {
  return (
    <div style={{ fontFamily: 'system-ui, sans-serif', lineHeight: '1.4' }}>
      <h1>Welcome to Remix</h1>
      <ul>
        <li>
          <a
            target="_blank"
            href="https://remix.run/tutorials/blog"
            rel="noreferrer"
          >
            15m Quickstart Blog Tutorial
          </a>
        </li>
        <li>
          <a
            target="_blank"
            href="https://remix.run/tutorials/jokes"
            rel="noreferrer"
          >
            Deep Dive Jokes App Tutorial
          </a>
        </li>
        <li>
          <a target="_blank" href="https://remix.run/docs" rel="noreferrer">
            Remix Docs
          </a>
        </li>
      </ul>
    </div>
  );
}