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While I applaud any attempts to innovate in this area, I'd be more interested in seeing the opposite approach - integrating persistent storage in a programming language. If we already have default implementations of dictionaries, linked lists, and other in-memory data structures in programming languages, why not have default implementations of permanent data structures such as object collections and KV-stores?

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There have been many attempts over the years. There's Prevayler [0], in Java, and Madeleine [1], in Ruby. Neither of them became wildly popular.

I worked with Madeleine for a few years and while the performance was amazing, RDBM systems are ahead because of the many years of standardisation, tooling and capabilities (e.g. migrations)

The other very important thing is - DB latency is an issue only in the hands of a novice. In the real world, network latency is a couple of magnitudes higher.

[0]: https://github.com/prevayler/prevayler

[1]: https://github.com/ghostganz/madeleine

Check this out: https://microstream.one/products/microstream-for-java/

Io also has persistence baked into it: https://iolanguage.org/reference/

But I'm sure for most of the HN crowd one has Java in the URL and the other is a esoteric cool language from the early 00's so.. not practical. :)

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