Just a note that the Beestore Maple Mini clone (whose PCB is a different layout than the original or Baite version) also works fine with the STM32 repo. Have had a couple for a while but never got around to trying them until this week, when I made a big push to get a fresh 1.6.1 install running all of the STM32/core13/TinyCore1/esp8266 cores.