Qt for Python (PySide/Shiboken)

I'm interested in learning about using QRhi in PySide6, based on examples. At https://doc.qt.io/qtforpython-6/PySide6/QtWidgets/QRhiWidget.html I see some code that looks like what I got with "pip install PySide6-Examples" in my site-packages/PySide6/examples/widgets/rhi/simplerhiwidge directory. That example runs fine, but I was hoping for additional examples. Can anyone suggest other sources of examples?