Workbench to integrate pyoptools with freecad, that means basically optics ray tracing capabilities for FreeCAD.
It requires a working FreeCAD and pyoptools installation.
Clone directly the git into the Mod dir in your FreeCAD root directory, that usually means cloning into ~/.FreeCAD/Mod directory.
After that you just select the "pyOpTools" workbench in FreeCAD in the usual way. As seen in the following screenshot
