A useful technical handover explains how the system operates, how it is deployed, where it can fail and who owns each external dependency.
List applications, domains, repositories, databases, queues, scheduled jobs, storage and third-party services. Someone taking ownership should be able to see the boundaries before reading individual files.
Record who owns each account and how access is requested. Do not put passwords or production API keys inside the handover. Secrets should stay in the system designed to store them.
Explain how a release is built, which migrations run, how background workers are restarted and what checks prove the deployment is healthy. Include a realistic rollback procedure rather than “restore backup” as the only plan.
Document fragile integrations, manual jobs, temporary workarounds, known performance limits and monitoring gaps. Hiding problems makes a handover look cleaner for one day and makes the next incident much harder.
Walk through one normal workflow and one failure scenario with the incoming owner. Let them perform a low-risk deployment or operational task while the previous maintainer is still available to answer questions.