hko, 
I've just released an alpha.1 version of OpenPGP CA 0.13:
https://crates.io/crates/openpgp-ca/0.13.0-alpha.1This release offers a preview of the new "Split" mode.
For details about split mode OpenPGP CA, see https://gitlab.com/openpgp-ca/openpgp-ca-web/-/blob/split/content/doc/split-mode.md (some details may change between now and the first stable release in the 0.13 series)
This work was supported by NLnet @NGIZero, thank you!
