Systems
Keep the recovery path simple
A reliable system needs one documented route back to a known-good state. The best recovery plan is the one that can still be followed under pressure.
A small field notebook
Clear notes for complicated systems.
Short references on software, infrastructure, and the practical details that are easy to forget.
Recent notes
Selected entriesOperations
Small services, explicit boundaries
Limit exposed ports, isolate credentials, and make each service responsible for one job. Clear boundaries make both maintenance and failure easier to understand.
Field note
Measure before changing
Capture the current state first. A short baseline turns an uncertain change into something that can be tested, compared, and reversed.
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