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Really cool project, thanks for making it available for others to look at. It really reminds me of https://pocketbase.io/ which has sorta the same idea and can be extended with go/js. How does the database work under the hood? Is it also based on sqlite? Are rust modules built with a special runtime in mind like tokio or?

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It's not based on sqlite. We have a custom database engine which we needed for performance reasons for BitCraft. We need to be able to control very carefully what is done in memory vs on disk so that we can manage latency for games and other real-time/soft real-time applications.

Rust modules are agnostic to all of that. Right now they're not async at all since they take place in a transactional context and you don't want to await while a transaction is held open.

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