So there's no rate limiting.

But because it's sqlite it's a single writer. Everything gets batched as one transaction every 100ms. The operations on a single chunk gets squashed into a single write.

Even without the squashing sqlite can handle 10000-20000+ updates/s because of the transaction batching.

With the chunk based squashing all edits to a chunk in that 100ms window become one update, so it can scale quite well.

But the question wasn't really if you can handle it, but more if someone could control the whole board themselves, I think?

Oh, I mean they could try. It's a very big board. Probably possible though if someone is sufficiently motivated.

I see a snake eating the 0,0 part now at least, heh.

Btw, if I add a ' to the string, it's impossible to override by othrs. At least in the UI on Firefox, the snake still ate it.