From this quote I’d hazard a guess that a structured set of links to help topics which cover the basics, not specifically created by the Lines or Monome communities, would be a good starting point for you. And once you have that down you’ll be able to ask more specific questions.
For the Terminal head here: https://macpaw.com/how-to/use-terminal-on-mac
For Lua start here: http://tylerneylon.com/a/learn-
For SuperCollider I love these: https://youtu.be/yRzsOOiJ_p4
I find the best way to learn anything new is to break it down into its component parts, and focus on them as individual pieces which can be brought together later. Otherwise it’s too much.
Also set yourself a goal. To create a drone engine in SC, which you’ll control in the grid with Max or whatever. That will focus you on learning just what you need to, you’ll achieve a result faster, which will encourage you to carry on.
And don’t be scared of asking questions. Create a thread about your project, share the files, get input. That way we can all chip in and learn as we go. I’m up for learning Max and I’d support helping to build something so we can both learn. For Lua, I’d be more than willing to build and share as I go.
It can be a very steep and large hill to climb. I find myself keen thinking about selling my gear and buying ready made stuff, but with the Monome hardware you get much more out of it, it’s really worth the time to learn.
Sorry I can’t give more links I’m on a mobile on a packed train and it’s friday night and I’m knackered 
