This repository is published as open source for transparency and review, but we are not accepting pull requests at this time. Pull requests will be closed without review.
If you believe you have found a bug in a puzzle, please treat it as a potential security vulnerability and report it privately by email — see SECURITY.md for our responsible disclosure process. Do not open a public issue for it.
Public issues are welcome only for matters with no security impact, such as build problems or documentation errors. If in doubt, use email.