npm install git-crypt-users

git-crypt-users-import
# loads git-crypt users' public keys into your GNUPG keyring

git-crypt-users-list
# loads git-crypt users' public keys into your GNUPG keyring

git-crypt-users-rotate
# generates a new key, re-encrypts encrypted files,
# and re-adds current git-crypt users

git-crypt-users-remove [userid...]
# generates a new key, re-encrypts encrypted files,
# and re-adds current git-crypt users, but does not re-add specified users