Node editors

Background
This page is dedicated to tracking different node-editor paradigms related, in some fashion, to FreeCAD.

Node Editors
The following is a list of node editors that can or potentially can work in FreeCAD.

PyFlow
https://forum.freecadweb.org/viewtopic.php?f=8&t=36299

Sverchok
Sverchok: https://forum.freecadweb.org/viewtopic.php?style=4&t=51069&p=438881

Pure-Data
Pure Data: https://forum.freecadweb.org/viewtopic.php?f=24&t=51429

Modelica
Modelica: https://forum.freecadweb.org/viewtopic.php?t=32556

DynFreeCAD
Nodes for managing FreeCAD from Dynamo (forum thread)