PythonCAD is a CAD package written, surprisingly enough, in Python using the PySide6 interface and python3. The PythonCAD project aims to produce a scriptable, open-source, easy to use CAD package (Cross Platforms)
GGredit is library that implements base functionality for a generic graphic editor. DDraw is a diagram editor designed for Gnome that use GGredit. DDraw is inspired to DIA, it can be used to draw many different kinds of diagrams.
This is a Computer Aided Electronic Design tool. It features schematic capture, simulation and PCB layout for both analog and numerical componants with the help of Gnome.