Support for openpgp is almost there: https://github.com/solokeys/openpgp https://github.com/solokeys/openpgp Note that the ed25519 is not as easy as it seems,

Support for openpgp is almost there: https://github.com/solokeys/openpgp https://github.com/solokeys/openpgp Note that the ed25519 is not as easy as it seems, ssh agent doesn’t support it yet. I wrote a couple notes/details in the somu campaign you linked, towards the end.