To install the processing code run:

git submodule update --init --recursive util/DAS-utilities/external/pybind11
cd util/DAS-utilities
mkdir build
cd build
cmake  -DCMAKE_INSTALL_PREFIX=../local ..
make install

If the default cmake does not work, specify python environment manually

cmake -DPYTHON_EXECUTABLE={} -DPYTHON_INCLUDE_DIR={} -DPYTHON_LIBRARY={} -DCMAKE_INSTALL_PREFIX=../local ..

Back-projection requires pycuda

Interactive GUI requires ipywidgets