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by the-alchemist 1848 days ago
Perhaps someone already mentioned it here, but GraalVM lets you interop between Java and anything LLVM, and therefore Rust, without the JVM startup cost, with breakpoints across languages, even (as I understand it). Compile time is long, though.

borkdude has been releasing for some very cool stuff using this stuff. Here's a Clojure/Rust combo:

https://github.com/borkdude/clojure-rust-graalvm