Adafruit SAMD51 (M4): Metro M4, Grand Central M4, ItsyBitsy M4, Feather M4 Express, Trellis M4, Metro M4 AirLift Lite, MONSTER M4SK Express, Hallowing M4, etc. To be able to compile, run and ...
This all can be done using Arduino CLI. This toolchain is fully based upon this really great tool: There are no tricks, no hacks, no manual parsing of obscure text files at undocumented locations.