- pre-generate jupiter SSH host key off-repo (~/.config/homelab/jupiter) - derive age recipient via ssh-to-age, add to .sops.yaml, re-encrypt secret - secrets.nix: sops.age.sshKeyPaths = host key (drop separate keyFile) - gitignore private-key patterns - README: ship host key via nixos-anywhere --extra-files; secret decrypts boot #1 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>