zypper install --no-recommends cmake doxygen eigen3-devel fontconfig-devel gcc-c graphviz++ harfbuzz-devel libSDL2-devel libSDL2_image-devel libepoxy-devel libfreetype6 libogg-devel libopus-devel libpng-devel libqt5-qtdeclarative-devel libqt5-qtquickcontrols opusfile-devel pkgconfig python3-Cython python3-Jinja2 python3-Pillow python3-Pygments python3-devel
You will also need nyan and its dependencies.