WCO stands for Worksheet Crafter Oszimilian
A linux based system is required. Can also be installed under Windows with Msys2. But this is very complecated.
sudo apt-get install libgtk-3-dev
git clone https://github.com/libharu/libharu.git
mkdir build
cd build
cmake -S .. -B .
make
sudo make install
git clone https://github.com/ImageMagick/ImageMagick.git
cd ImageMagick
./configure
make
sudo make install
sudo ldconfig
make
cd bin
./wco