Who Killed the Build? A Halloween DevTools Murder Mystery with Flox
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AI Valley and developer-tool company Flox will host an interactive Halloween murder mystery, where attendees investigate a broken build, uncover clues about dependencies and environment drift, and see how Flox creates reproducible software environments across laptops, CI, and production. The evening will also feature real developer horror stories and a Halloween mixer.
Inside the event
Who Killed the Build? 💀 A Halloween DevTools Murder Mystery with Flox The build is dead. The cause? Unknown. Join AI Valley and Flox for a Halloween devtools night where you’ll investigate what went wrong, follow the clues, and figure out who (or what) killed the build. Instead of a traditional product demo, Flox will take us through an interactive investigation of a broken development environment. Along the way, you’ll uncover suspicious dependencies, environment issues, and other clues before making your final guess. 🔎 Investigate the crime scene 💻 See Flox in action 🕵️ Follow the clues and solve the mystery 👻 Hear real developer horror stories 🎃 Enjoy Halloween food, drinks, and networking Costumes are encouraged. Production incidents are not. Agenda 5:00–6:00 PM — Doors Open + Halloween Food, Drinks & Networking 6:00–6:10 PM — The Crime Scene: Welcome from AI Valley + Flox and meet the suspects 6:10–6:30 PM — The Investigation: Interactive Flox demo with clues revealed throughout 6:30–6:40 PM — Solve the Murder: Review the evidence and vote on what killed the build 6:40–6:50 PM — The Reveal: Uncover the culprit + how Flox helps prevent the underlying problem 6:50–7:10 PM — Developer Horror Stories: Builds, deploys, and environments gone horribly wrong 7:10–8:00 PM — Halloween Mixer + Food, Drinks & Networking About HAC Hanwha AI Center (HAC) is a private membership for all those dedicated to AI. As a hub for innovation, HAC brings together passionate entrepreneurs, researchers, and visionaries to explore the societal and technological impacts of AI on human life. Flox is a developer tool that creates reproducible, hash-pinned software environments across laptops, CI pipelines, and production. It eliminates environment drift by using a single configuration file to lock exact software versions everywhere. Flox is powered by the Nix package manager, but simplifies the experience so users do not have to write Nix code directly. AI Valley is a community rooted
Meet in San Francisco, CA
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Last checked: Oct 13, 2026. Confirm current availability before making plans.