Explore the development of lychee, a high-performance link checker supporting Markdown and HTML, in this Rust Linz conference talk. Delve into the challenges of creating a link checker and discover why Rust proved to be the ideal language for this project. Learn how async Rust and the ecosystem's capabilities enable the construction of efficient CLI tools. Gain insights into the complexities that can arise from seemingly simple tasks and how Rust's features address these challenges. Benefit from the expertise of Matthias Endler, an experienced Rust developer and open-source maintainer, as he shares his journey in building lychee and other popular Rust crates.