Unifi Protect live viewer for 6 to 12 cams

Hi everyone,
Anyone have experience with a live viewer box to display 9 to 12 Unifi Protect camera’s on a TV/screen?
I have seen some video’s about a Pi that should be able to run 6.

I’m looking for something small that so it could be on the back of or on the wall behind a TV

Love to hear your ideas or how you do it.

Thanks in advance.

I have seen an Intel NUC handle over 30 streams at the same time.

Thanks, will look intro that.
Did see a cool viewer project with a NUC.