main.tex is always the most up to date file.
When we have a old version that we want to use as the basis for a diff, that goes in versions/v1/main.tex.
Type scons --sconstruct SConstruct-noinkscape in the command line if you don't have Inkscape all set up to work on the command line.
If you do, scons should work.
Use scons continuous to have continuous building after installing inotify.
If you have Inkscape v1.0 and do want to run Inkscape, use
inkscape = Builder(action = 'inkscape --export-type=pdf --export-filename=$TARGET $SOURCE')