Transitioning the core messaging library at Meta from C to Rust is more than a technical upgrade — it’s a strategic move to ensure reliability and scalability across Facebook, Messenger, Instagram, Meta Quest and Ray-Ban Meta glasses while also delivering greater developer happiness. Buping W. and Elaine W. share the real-world challenges of navigating legacy code, from managing hundreds of variable initializations to improving developer velocity. “One of the nice things about Rust is its compile time checks, such as Rust Analyzer. We’ve already integrated this feature into our IDE. It allows us to see real-time error warnings and type deduction results in-line in the code. We also like Rust Format, which is another powerful tool with IDE integration. Whenever you save a file, it shows you all the code you’ve written in a really clean, organized format. That’s a huge benefit for developers.” – Buping W., Software Engineer, Messaging Transport 🎧 Interested in code modernization and why Buping, Elaine and their team chose Rust? Stream episode 76 of the Meta Tech podcast to learn more: https://xmrrwallet.com/cmx.plnkd.in/grCbTbqZ #LifeAtMeta #engineering #RustLang #coding
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Wow, this ought to be interesting!
It’s always fascinating to see what tools companies choose when modernizing large systems. Rust’s focus on safety and speed clearly makes a strong case — excited to see how this shift shapes future development at scale.
💡🙏Great insights, thank you, Elaine. Also, a huge benefit for clients like my team. We found misalignment sometimes not because of the Instagram team, but because of the time. Please do include clients like us more, we are there to grow with you together.
It’s inspiring to see Meta prioritizing both performance and developer experience by transitioning to Rust. The real-time error detection and formatting tools sound like a game-changer for improving code quality while boosting developer happiness. Looking forward to learning more about how this modernization impacts scalability across such diverse platforms!
Thoughtful post, thanks
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The way Meta is using Rust to modernize key systems is fascinating. I really liked the emphasis on the developer experience and the significant influence that tools like Rust Analyzer and Rust Format are having. Looking forward to hearing the entire episode!
Real-time compile checks are a game-changer, but adopting Rust also means unlocking safer memory management, which can drastically cut down on runtime errors. This shift feels like a big win for both developers and end users, Meta.
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