Krux v24.03.0: Performance Optimizations, Reproducible Builds & More Krux is open-source firmware that enables anyone to build their own Bitcoin signing device via off-the-shelf parts. It runs on Kendryte K210 devices such as the M5StickV and Maix Amigo, converting them into airgapped devices that can sign transactions for multisignature and single-signature wallets. https://www.nobsbitcoin.com/krux-v24-03-0/