Krux v24.07.0: Maix Cube, BIP-85, BBQr Support, Speed & Security Improvements 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, turning them into airgapped devices that can sign transactions for multisignature and single-signature wallets. https://www.nobsbitcoin.com/krux-v24-07-0/