Alinea.cloud provides a cloud service to set up a backend in a few clicks. It takes care of authentication, inviting other users to collaborate, and pushing changes to your git repository. Add the following to your alinea.config.tsx config file. After a deploy you can continue the full setup inside the dashboard (/admin.html) itself.
Make sure you've exported the dashboard first
import {createCloudBackend} from 'alinea/cloud'
export const config = createConfig({
backend: createCloudBackend(),
...config
})