Deployment matrix
One table of how every app reaches dev and production, what triggers it, and who can do it.
Release process
The order to deploy in, how a change moves from a branch to production, and what to check at each step.
Stripe
Test cards for the dev environment, test versus live mode, webhooks, and the go-live checklist.
Secrets management
Where every secret lives, how it reaches each environment, and how to rotate the ones that matter.
Logs and monitoring
Where logs are, how to follow a request across the stack, and what monitoring exists today.
Backups and recovery
What is backed up today, what is not, and the recovery procedure for each component. Partly a placeholder.
Who to ask
The people and channels to contact for access, infrastructure and product questions.