Hardfloat Python - what's needed?

[Lexicality]

Hi,
I've been trying to get the screensavers tool to work on my paperwhite 5 but not having much luck. I saw this in the thread:

Originally Posted by Frogm4n

If your firmware is 5.16.3 or higher then there is nothing to do except wait for the hardfloat version of the python packages to be developed, unless you have programming skills and can help create them.

Happily, I have programming skills. What needs doing? I had a look around but couldn't work out how the python packages were being built.