the CLI doesn't work on some Linuxes

[tomgp]

As it stands the shebang at the start of supply-cmd.js #!/usr/bin/env node --experimental-modules doesn't work on some types on Linux. This is because the whole thing is taken as a single command i.e. the --experimental-modules flag is considered as part of the command name not a flag.

--experimental-modules flag is necessary as we aim to support Node 12+. At Node 12 ES modules are not supported without the flag.

Suggestions:
Maybe a bash script that executes the command with the flag?
relevant Stack Overflow question https://stackoverflow.com/questions/48179714/how-can-an-es6-module-be-run-as-a-script-in-node