They do make it clear...
# privacy
we store your key fingerprint, not the full public key.
no IP logging. no tracking. no analytics.
chat messages and game scores are stored in
postgres, tied only to your fingerprint.
don't trust us? use a throwaway key:
$ ssh-keygen -t ed25519 -f ~/.ssh/late_throwaway && ssh -o IdentitiesOnly=yes -i ~/.ssh/late_throwaway late.sh
generates a disposable key — zero risk, full experience