Epistemic Status: 
Sprouting - This is a zettelkasten-style card about a concept I’m interested in remembering.
SpacetimeDB is a relational database that also hosts application code. This is different from using Postgres with stored procedures because it allows writing the code in more mainstream languages like Rust and C#.
The developers are using it for the server side of their MMO Survival RPG BitCraft.
It looks to have some interesting ideas, so I want to take a closer look at it.