Turn a $5 Raspberry Pi RP2350 board into an open-source hardware passkey: WebAuthn/FIDO2 logins, ssh & git signing, OpenPGP, PIV, TOTP. Rust firmware, no_std.

A Personal Secure Key with open hardware and software

Thanks to Raspberry Pico (RP2040, RP2350) and ESP32-S3, you can use it as a personal secure key for key storage, secure login and much more.