# Note: depends on pkg-config
# Note: depends on libffi
# Note: depends on Python
# Note: depends on setuptools
wget -c https://github.com/twisted/incremental/archive/incremental-17.5.0.tar.gz
tar -xzf incremental-17.5.0.tar.gz
cd incremental-incremental-17.5.0
python3 setup.py build
python3 setup.py install # as root