Announcing here, too (just announced on #makers):
Programmatic 3D Modeling! Wednesday 7-8PM Eastern, https://openscad.org/. Let's meet on https://jitsi.org/ and model a "fan base" with OpenSCAD for eventual concrete casting. No prior OpenSCAD knowledge is necessary. I'll post the Jitsi link here about an hour before it starts. Please react if you want to attend, because I have no idea what I'm doing and whether 0 or 20 people will show up.