#FreeGrid issue #1 just closed today. It's now a #FreeCAD Workbench available through the Addon manager. I got credited due to some small work I did, but my contributions to FreeGrid have been small. FreeGrid is mostly original work from @in3dca and some great work from @hasecilu over the past several months to create the Workbench and make it parametric instead of a procedural macro.
When FreeGrid was first created, Gridfinity was basically limited to Fusion 360, and FreeGrid was the alternative that didn't tie you to a particular vendor. Now Gridfinity is truly openly available for OpenSCAD and FreeCAD as well, which is awesome. I can see myself using both systems, depending on whether 50mm spacing (FreeGrid) or 42mm spacing (Gridfinity) makes most sense for any particular use case, and whether particular modules I want to use already exist for one system or the other. Vive la différence!