This appears to assume knowledge of some stack that I have never heard of using jargon I have never heard of. Is there some intro to whatever this is?
Oversimplified, but I think it’s an open-source Second Life stack: client, protocol, server, database.
There’s more in the blog & on the main site (https://krestianstvo.org/en/). Maybe that’s what I should have posted — the top-level for this project I’d never heard of that’s doing amazing-looking things with virtual worlds — instead of their “latest update” blog post.