> While this article is written by the plane.dev team, which has an adjacent product, their approach seems more geared towards more demanding backends. Lots of use cases don't need to run e.g. a game or simulation on the backend, they just need a synchronization layer in front of a document store.

If all you have is a hammer, everything looks like a nail. Vercel and Netlify haven't been known as tools for building good realtime collaborative apps. I suggest that devs who are inspired by this post try having a truly live document.

Here's a list of realtime providers. Impressive? Sure. Easily used for stuff like Figma? Not so much. https://vercel.com/guides/publish-and-subscribe-to-realtime-...