Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

Bun's experimental Rust rewrite achieved 99.8% test compatibility on Linux x64 glibc, earning 530 votes and 490 comments—nearly triple the engagement of #1. This declaration that Bun's future runs on Rust's memory safety is backed by a 40% reduction in segmentation faults compared to its Zig-based predecessor. The rewrite is 30% lighter than the runner-up runtime in memory footprint, while maintaining sub-100ms cold starts. It also surpasses Node.js in throughput by 22% on HTTP benchmarks, making it the fastest JavaScript runtime on glibc systems. This isn't a mere update; it's a quantitative leap toward production reliability.