A Git commit is not deployment proof. Installed host Compose version is not
proof of Portainer's Compose implementation.
Recovering deployment requires Portainer state or independently retrievable
repository credentials and stack environment values. Portainer backups
exist; credential/state restoration is untested. Do not put secret values in
this site or Git.
Host apt packages, fstab, RAID assembly, systemd units and Mercury nginx are
outside the Compose deployment workflow.