Path should be entered by whoever uses the script with an appropriate path to the SMTL.

openmm.org seems to be down, no idea whether this persists.
Github page should be equally good...

You might have to adapt CMake flags when building ProMod3 to variables
specified here: https://cmake.org/cmake/help/latest/module/FindPython.html

As of 3.1.0, BuildRawModel only accepts a list of strings as chain
names if the alignments have been passed as AlignmentList. This
commit restores the behaviour that we can also pass a string where
each chain gets named according to the single letters in that string.