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Neon JavaScript Native Extensions in Rust

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JavaScript Native Extensions (C++) ● Unsafe ● Risky - segfaults! ● Maintenance burden ● Contribution barrier ● Cross Platform Support

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Meet Rust ● Like C: compiled, statically typed, very fast ● Unlike C: enjoyable to use, guarantees safety ● "If it compiles, it doesn't crash" ● Same guarantee as JavaScript with memory safety ● Strong C/FFI support

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Cargo - Dependency Manager

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What is Neon? ● Rust bindings for writing safe and fast native Node.js modules ● Crash free memory protection (works with JS GC) ● Parallelism (use multiple threads)

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Mandelbrot Demo

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z n+1 = z n 2 + c

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DEMO https://github.com/hone/electronjs-mandelbrot https://github.com/hone/neon-mandelbrot

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Wire App

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Neon @ Heroku/Salesforce

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Heroku/SFDX CLI

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Distribution