I’ll second this for the most part. Once you get the basic framework of a docker host set up it’s pretty simple with only a couple containers holding it up so if you can understand the workings of virtual machines/containers it’s pretty ‘easy’ to set up. That said, an ugly XSS vulnerability has been out there causing problems and as a whole it’s very much an unpolished product so there’s a lot of work in understanding ‘why the heck is it doing this now??’ things.