Julien Danjou • 6/9/2026

I Shipped a Rust Binary. I Can't Write Rust.

This article details the process of porting the Mergify CLI from Python to Rust, despite the author not being proficient in Rust. It explains the motivations: faster startup, single binary distribution, and reuse as a shared native core via PyO3 and TypeScript bindings. The author emphasizes an incremental porting approach (not a rewrite) to preserve bug fixes and edge cases, using AI to write Rust code. The piece covers technical trade-offs between Rust and Go, and the practical strategy of one command per pull request over 40+ merged PRs.

0 comments

#cli #rust #Cargo