I already have my implementation as a standalone script! I also have implemented in Reorder Omega just because I wanted to include some extra scripts in Omega that I personally find really helpful
I actually have a standalone script for this, too, although not an exact copy since I wanted it a bit sleeker
If you mean WK’s changes then it’s sadly primarily through bug reports in my other scripts (this time in Reorder Omega) and digging around in WK’s code in the DevTools. Otherwise I’ve just been learning stuff as I go over the least few years. Pretty much everything I know about programming has been learned through trying to fix things right here on Wanikani and looking up docs or googling.