tech
March 20, 2026
When Your Vibe Coded App Goes Viral—And Then Goes Down
Lessons learned when vibe code meets high load
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TL;DR
- The "vibe coded" document editor, Proof, experienced server crashes after a rapid launch, impacting user access.
- The author relied on AI agents (Codex) to debug issues in a codebase they didn't fully understand.
- Proof was developed quickly, evolving from a MacOS app to a web-only version in about 10 days, becoming a critical internal tool and used by subscribers.
- The experience demonstrates the capabilities of "vibe coding" for rapid app development but also underscores the need for human engineers when issues arise.
- The author believes that if an app can be "vibe coded," it can be "vibe fixed," though not necessarily quickly.
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