An engineer used Claude to port an Emacs package to Rust, reducing execution time from 90s to 15ms with minimal manual coding. The AI successfully handled complex code translation, interface design, and bug fixes, demonstrating significant advancement in LLM capabilities for software development. The experience highlights both the impressive progress of AI coding capabilities and the evolving dynamics of software development where code generation becomes cheaper while architectural design and understanding remain crucial human skills.
https://blog.nelhage.com/post/personal-software-with-claude/