I have been running the firmware from here for 2 years and it is the best. I printed a satsana for my ender 3 pro, and really want to put it on to test it, the endeer 3 pro has a BTT e3 mini v2.0 board and all I really need to change are the probe offsets. I tried to use the firmware builder but the option isn’t there to change the offsets. Lately I have for some reason been having a ton of problems with building Marlin 2.1.1 on my own and can’t figure out why. I don’t know if I should totally uninstall vs code and everything and re install it all.
If you only need to change the probe offsets, you can do this via the M851 command in your start G-Code.