Episode 12 of The Web Development Podcast digs into a silent killer of CI pipelines: the package lockfile. Lucas and Luna trace how a single mismatched lockfile—generated by different npm versions—caused a 12-person team to lose three full developer-days to phantom dependency failures. They walk through why lockfiles like package-lock.json and yarn.lock aren't optional, how to audit them for integrity, and the one command that catches corruption before it hits staging. If you've ever had a build mysteriously fail on one machine but work on another, this episode gives you the forensic checklist. No theory, just the mechanic's view of the modern web stack.

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