The decision
Give a cover maintainer a bounded action list, a status-note location and a clear escalation point.
A bounded example
Use separate accounts and verify the cover person can follow the record without receiving secrets in a shared document.
Documentation
Use the relevant version of Ubuntu — OpenSSH before changing a live service.
Checks before change
Keep a recovery route, work on an isolated copy when data is affected, and record observations rather than assumptions. Stop if an acceptance check fails.
Limits
Hoszen does not preinstall or operate applications, hold secrets, verify backups, promise capacity or confirm a payment or VPS delivery.