Dev obsesses over rust rewrite of lazydocker: shaves 200ms startup, wastes 3 weeks sanity, saves 43 seconds a year

A developer has created Dockyard, a Docker container manager written in Rust, as an alternative to Lazy Docker, which is written in Go. The creator spent three weeks building Dockyard, driven by a desire to optimize performance, despite acknowledging that Lazy Docker is a great tool that meets all their needs. Benchmarks show that Dockyard starts up in 31 milliseconds, compared to Lazy Docker's 247 milliseconds, and uses 82% less memory. However, the real-world impact is negligible, with an estimated 43.3 seconds saved per year. The developer notes that building Dockyard was a learning experience, allowing them to gain expertise in Rust, tokio, and async programming. While Dockyard is technically faster, it is not necessarily better than Lazy Docker, and its development was largely driven by the creator's personal interest in optimization. The project highlights the trade-offs between performance and practicality in software development.