lk5-pro
There are 2 repositories under lk5-pro topic.
Guizz27/Marlin---Longer-LKx-Pro
Marlin 2.0/2.1 for Longer LKx Pro. Should also work with Alfawise U30 Pro
Guizz27/DWIN_LK4Pro
LKx Pro touchscreen firmware. Should work with Alfawise U30 Pro and Longer LK5 Pro