[cassiogo]

Not mandatory, you could remove that

[mg]

Cool. What would be the steps from a fresh Debian to get it running and see it in action?

[cassiogo]

Not sure debian has (a modern) ruby installed by default, but I think you only need to have a working ruby installation and running the script. On a sidenote, this came out recently and could interest you https://dashbit.co/blog/announcing-phoenix-playground