Adapting RepRapFirmware devtools to PlatformIO would greatly benefit interest in firmware and easy of development. Setting up toolchain for the RepRapFirmware is quite a timeconsuming affair (for an average user).
Also STM32F4 port from gloomyandy/RepRapFirmware would most likely without any changes port to STM32F1 used in Creality 4.2.2 board. Arguably most mass produced board ever. Most of Creality printers ship with it.
It is not exactly environmentally friendly to throw away Creality 4.2.2 board with STM32F1 just to get Fly-E3 board with identical functionality only becouse of STM32F4.
