Layer1 Development Resources

Hardware wallet with a strong focus on security and open-source software, designed for cold storage of Bitcoin

DIY open-source hardware wallet solution that allows users to securely generate and store their Bitcoin seed phrases

Software tool designed for use with the Coldcard hardware wallet in Hardware Security Module (HSM) mode It enables automated, rule-based signing of Bitcoin transactions, allowing the Coldcard to sign transactions without manual confirmation

Specializing in open-source hardware products for Bitcoin and the decentralized internet, including hardware wallets and nodes

Minimalist hardware wallet that provides a bitcoin-only version, emphasizing security and simplicity for users to safely store and manage their Bitcoin assets

Self-custody bitcoin wallet with an app, hardware, and recovery tools