Dependency Yank Drill: Recover When Yesterday's Build Cannot Be Recreated

A build that worked yesterday fails today because a package disappeared, a registry changed, or a transitive dependency moved. Participants investigate the failure, compare lockfiles, verify provenance, and decide how to restore builds without blindly trusting a random replacement.

The workshop covers artifact caching, private mirrors, checksum verification, dependency ownership, emergency patching, and communicating build risk. It is built for teams that need reproducible deployments, not lucky deployments.