Git Signing on Remote Server

.ssh/allowed_signers

YOUR@EMAIL.COM ssh-YOURSSHSTRATEGY YOURPUBKEY

.gitconfig

[user]
    email = YOUR@EMAIL.COM
    name = YOURNAME
    signingkey = /root/.ssh/YOURPUB.pub
[credential "https://github.com"]
    helper =
    helper = !/usr/bin/gh auth git-credential
[credential "https://gist.github.com"]
    helper =
    helper = !/usr/bin/gh auth git-credential
[gpg]
    format = ssh
[commit]
    gpgsign = true
[gpg "ssh"]
    allowedSignersFile = /root/.ssh/allowed_signers