clockworklabs/SpacetimeDB ? reverse-engineered prompt

I want to build a backend system where the database and the server are the same thing. The idea is for building real-time apps like multiplayer games or chat without having to manage a separate web server, database, and all the plumbing in between.

You should be able to write the application logic and schema in Rust, C#, or TypeScript and upload it directly into this database-server. Then, clients for games or web apps can connect directly to it to send commands and subscribe to data. When the data changes for one user, the system should automatically push the updates to all other subscribed clients in real time.

The whole thing needs to be super fast and low-latency, designed from the ground up for high-performance applications like an MMORPG. Make it a single, cohesive system that handles storage, logic, and real-time state synchronization.