My Thoughts on Bun's Rust Rewrite (opens in new tab)

Before we discuss Rewrite Bun in Rust, there's something that needs to be said, because no one is saying it. Bun stands where it does today because of Zig. Jarred chose Zig back then not because it was "cool," but because Zig enabled a small team to rapidly prototype a high-performance JS runtime without a GC, without a heavy runtime. Zig's low friction, direct memory manipulation, and straightforward C interop were the core reasons Bun could punch above its weight on performance with an extr...