tinygo/targets/itsybitsy-nrf52840.json

{
    "inherits": ["nrf52840", "nrf52840-s140v6-uf2"],
    "build-tags": ["itsybitsy_nrf52840"],
    "serial-port": ["acm:239A:8052", "acm:239A:8051"],
    "msd-volume-name": "ITSY840BOOT"
}