Design a deployment script with build, health checks, atomic releases, rollback, and zero-downtime patterns for shipping apps safely.
## CONTEXT Deployment scripts sit on the critical path between code and users, so a flaw can take down production. In 2026 a dependable deploy script uses atomic releases with a symlink swap, runs health checks before sending traffic, supports instant rollback to the previous release, and is idempotent so a re-run…
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