Add linux build

[kLabz]

This looks interesting, but it's only available for macOS right now so I can't give it a try.

It should be possible to integrate with other OS since it is based on electron, but I understand system integration can make it difficult.

I hope this issue can become a way for us linux users to be notified when something is done to make it work on linux. And maybe also for us to let you know we are interested :)