Any thoughts gratefully received.
later - having delved into it some more, this seems to be run by a one-man band and I get the impression that he's assuming a LOT more knowledge of Linux than I have, or is simply unable to explain how to do basic things like choose the correct version for my machine in a coherent way. I think I'm going to go back to looking at one of the mainstream Linux distros that has better support and documentation.
Also posted at https://ffutures.dreamwidth.org/2164360.html, where there are comments. Please comment here or there using OpenID.