>While optional, the GIL remains enabled by default in Python 3.14. To turn it off, you need to first compile the Python source code with the --disable-gil flag. This produces a GIL-free interpreter that lets multiple native threads run Python code at the same time. Alternatively, you can streamline the building of a free-threaded version using pyenv.

So it's not so much optional, it's still a pain in the butt to enable; and there's no docker images with it?