The fully qualified board name to use when compiling. Default: "arduino:avr:uno" If the board is from one of the platforms provided by Arduino's default package index, the board's platform dependency ...

There's a PowerShell script called docker-run.ps1 that will spin up a container with the needed runtime to compile the sources. Running the script will pull the maven:3.6.1-jdk-11-slim image an create ...