The original title is "Pilum: From Launch to Production-Ready in 3 Months"

Short summary

An engineer shares a detailed postmortem of taking Pilum, an open-source multi-cloud deployment CLI, from initial launch to production-ready over three months and 40+ PRs. Key bugs included race conditions in wave-based deployment ordering, silent error swallowing in worker queues, and GCP secrets handling. The core lesson: test failure paths harder than success paths, because users care most when deploys claim success but actually broke something.

• •Wave-based parallel deployment had race conditions where wave N+1 workers started before wave N drained
• •Silent error swallowing in worker queue caused false success reports on failed deploys
• •Orchestrator rewrite split 772-line runner.go into testable modules; failure-path testing is critical for deployment tools

Generated with AI, which can make mistakes.