There are always new things happening in the world of opensource CAD / CAM / AEC
FreeCAD reached version 1 finally, BlenderBIM became bonzai and suddenly OpenAEC turned up in a similar space to OSArch! Busy world.
Anyway, I thought people here in LibreCAD world might be interested in an OpenAEC project, Open CAD Studio is a DWG/DXF compatible GPL3 AutoCAD clone in the making. Already very usable. Take a look, you might like it.