During 2026, I will start using the following SSH for signing my commits and tags:
git@romanzey.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAZVq/3fgkildjN/MqEnhrP5550sDpFzGxMwevr5q/9w
See https://blog.dbrgn.ch/2021/11/16/git-ssh-signatures/ for more details about Git with SSH signing.
My GPG key (15C8C3574AE4F1E25F3F35C587CAE5FA46917CBB) will expire at the end of 1/1/2027.