A sleep tracker shut down 10 years ago, brought back to life on a Mac with AI: firmware, servers, and an iOS app.

TL;DR: I used Claude to revive a sleep monitoring device from a company that went under 10 years ago that also received over $40M in investments. I used a few widely accessible tools to reflash the devices, found the repositories on GitHub, and rebuilt most of the software stack to run on my Mac with full feature parity.