ssh-keygen -t ed25519 -C "mbp16" -f ~/.ssh/gitlab-ci-mbp16-ecdsa
ssh-keygen -t ed25519 -C "dev.cloudfalcon.io" -f ~/.ssh/gitlab-ci-dev-cloudfalcon-io-ecdsa
~/.ssh/config
# GitLab.com
Host gitlab.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/gitlab-ci-mbp16-ecdsa
# Private GitLab instance
Host gitlab.company.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/gitlab-ci-mbp16-ecdsa