Notes from installation of ethercat on Raspberry Pi 4

The video looks great! Can you let me know please what components you use in set-up: motors, drivers, motion cards, etc. I have servo motors with Ethercat. Can you recommend a motion card that may work?
Thank you!

Sorry, newbie, but there is one question from the experience of forum members, because time has passed, and experience is power.
Is the Raspberry Pi4 network controller with Ethercat stable?
If so, on which versions of Linuxcnc and on which Linux kernel?
Thank you all for your responses and feedback.

I think it's supposed to be stable; the Etherlab folks have a specific driver for it, but I don't have any specific details on using it handy.