Make every bug perfectly reproducible
We are building a VM that helps you simulate realistic production conditions, model latencies, different interleaving, user requests, and find bugs. Every non-deterministic property is turned into a knob you or a coding agent can control. We have helped teams perfectly reproduce support incidents and found bugs in some of the world's most well tested software (including a database).
Make every bug perfectly reproducible launched on June 20, 2026 with 13 votes, #1,084 of 22,647 launches that month and more than 90% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
This is a virtual machine designed to help developers reproduce bugs by simulating realistic production conditions. It converts non-deterministic properties—like latencies, thread interleaving, and user request patterns—into controllable parameters that teams or AI agents can adjust. Built for software engineers and teams debugging complex systems, it enables perfect reproduction of production incidents and has reportedly uncovered bugs in heavily-tested software including databases.
written from the facts on this page · September 2026
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