Did you install the required dependencies (for me on Debian, all available as development packages from standard repositories--on your distribution, it may be different) and run rebuildall.sh (not as root)?
Then you can run the file it produces in the main folder as a binary, just run it from a terminal in that folder (see below). Works with standard stuff so far but my college courseload is too much, I have to wait until this Summer to really sink my teeth into it and make any progress on the stuff I have planned.
Mark really deserves some help over on Patreon, if you are going to use his work you should send some money his way every month...