Helix: Native Extensions for Everyone
summary
Helix claims Rust can become the standard way to write Ruby native extensions by providing a macro-based API that generates bindings and integrates with Cargo and gem packaging. The demo shows building a working extension for string and JSON manipulation, with most logic in safe Rust and only a thin C-compatible shim, reduces unsafe shim to a few lines. Tooling proof includes compiling with Cargo, running Ruby tests, and loading the gem into an IRB session.
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