Hacking with Claude on a $27 Smart Watch
A developer used Claude and open-weight models to build a custom Casio-style watch face for the $27 PineTime smart watch, replicating a design from a tweet. The project took a few hours, with the watch streaming a fullscreen background image from its file system due to memory limits. Code and an AGENTS.md guide are on GitHub.
The low-stakes environment (not production code at my day job) makes me feel like I can try whatever I want and iterate quickly, and it’s really rewarding to work on firmware for a physical device that I can hold and use when I’m done building it!