Ubuntu is my daily driver but I'm thinking of setting this up on my never used Raspberry PI -- anyone using it? How tough do you think it will be as a first project?
Those instructions are from the official docs, and install.sh comes from the source repo.
It's an annoying script (it basically runs apt, npm, make, on your behalf...thanks, I can do that myself), but if you're trusting the repo source to begin with, I don't think it's any less secure.