[SushiHippie]

Reminds me of someone's personal site: https://dimden.dev/.

Not many people are currently on there, but you can just open another tab and see for yourself. Also has a little live chat which gets a bridge to their discord server, where you can chat with others that are currently on the page.

[dorian-graph]

And this other personal site, with real-time multiple cursors: https://j-e-s-s-e.com