3.13 shipped free threading as an experimental feature, but in 3.14 it's considered production-ready (?), so should be provided for.
The biggest issue in the package is probably the thread-safety of the caches. In actuality it's the thread safety of re2, but given 3.13 compatibility was only shipped in July 2025 (10 months after the release of python 3.13) a 3.14t build is probably not coming any time soon.