Failures teach the system
Every incident writes a regression test. The postmortem doc becomes the next deploy gate, and the runbook you write at 2am ships with the next release.
Ship small, ship often
Flag-guarded paths let 14 teams deploy independently, 37 times daily, with zero customer-facing incidents. The merge is the smallest unit of risk.
Observability ships with code
Traces, logs, and metrics are first-class artifacts, not retrofits. Every service emits its own telemetry before the PR is reviewable. No special pleading required.
Automation beats heroics
If a human had to wake up at 3am to fix it, the system missed a unit test. Close the loop: code the fix, write the test, remove the pager duty rule.