tinygo/targets/feather-nrf52840.json

{
    "inherits": ["nrf52840", "nrf52840-s140v6-uf2"],
    "build-tags": ["feather_nrf52840"],
    "serial-port": ["239a:8029", "239a:802a"],
    "msd-volume-name": ["FTHR840BOOT"]
}