Hacker News Rust Digest — September 28, 2026
A thinner Rust week on HN, led by the state of SIMD in Rust, Tokio's ambitious Topcoat web framework, AI agents that optimize Rust by measuring it, and a Rust take on 'Parse, don't validate.'
Posts, notes, and digests — building the things, mostly in Rust
A thinner Rust week on HN, led by the state of SIMD in Rust, Tokio's ambitious Topcoat web framework, AI agents that optimize Rust by measuring it, and a Rust take on 'Parse, don't validate.'
How to think about the `if-let` syntax
An introduction to error handling in Rust
Nvidia's native Rust CUDA tracks dominated the week, alongside Ubuntu completing its uutils transition, a Rustacean's tour of Zig, single-file SQLite web apps, formally verified Rust with Verus, and the difficulty of building Rust language tooling.
How to define, instantiate and use the hash map collection type in Rust.