
progress report on nostr cryptographic keychain tooling project signr:
https://github.com/mleku/signr
v1.1.x branch is now complete, even has some tests on the cryptography, includes a full CLI for managing a simple, ssh-style keychain, signing arbitrary files and data blobs fed by pipe, and includes custom namespacing, defaults to using two layer secure signatures that always included the public key (npub, natch).
about to start work on v1.2.x branch, which will include the ability to sign bitcoin raw hex transactions with standard ECDSA segwit style signatures to enable anchoring published items to the chain, and other uses we haven't thought of yet.