[flagged]

Can you please not post like this here? It's against the site guidelines: https://news.ycombinator.com/newsguidelines.html

You're right. Sorry, can't delete the comment now.

The whole point of this framework is that a ton of the logic remains on the backend, with live connections to the frontend. At least for me the performance and hosting cost implications of that was the first question that came to my mind when I looked at this, I don’t understand how answering this question isn’t relevant here.

It's global multiplayer, you can see everyone changes simultaneously. There's no client side state for the checkboxes they are all on the server.