The https://freepg.org/ project maintains patches against #GnuPG with the goal of closer adherence to the IETF #OpenPGP spec.

One currently open question is if/how draft-ietf-openpgp-pqc support could be realistically added to #FreePG

I've started https://codeberg.org/freepg/freepg-draft-ietf-openpgp-pqc first of all as a notes-to-self repo for a (presumably very slow and long-term) side quest to explore this problem.

Specifically, the goal would be adding support for v4 ML-KEM-768+X25519 subkeys.

https://www.ietf.org/archive/id/draft-ietf-openpgp-pqc-17.html#ecc-mlkem

FreePG Project

FreePG is not associated with g10code GmbH.

I set up a containerized build environment to facilitate working on the GnuPG IETF PQC branch:

https://codeberg.org/freepg/freepg-draft-ietf-openpgp-pqc/src/branch/main/build

The goal of adding #IETF #PQC support to @freepg is still very many steps away. But it's nice to have a foundation to start from :)

freepg-draft-ietf-openpgp-pqc

Explore support for draft-ietf-openpgp-pqc in https://freepg.org/

Codeberg.org