horses was last released in 2024, and can only run on python up to 3.12.

horses depends on iron-making, that is up to date. That means the current version of iron-making depends on python >= 3.14, and that all the versions prior to 2025 were taken offline due to a CVE where if you run the library as root in a web backend that uses the make_nail function, people can open your barn doors without authorization when inside it.