Iāve had as many as 3 separate CC4C ātunersā going at once (Bravo, NBC, CNBC).
My M2 is dedicated to Homebridge, Plex, and Channelsā¦and for Homebridge it runs HBUP (homebridge-unifi-protect for those curiousā¦UniFi Protect to HomeKit connectivity) which runs a lot of FFmpeg streams simultaneously at the same time as well. No issues across the board. I believe the M2 has a dedicated media encoder/decoder that the M1 (base) may not? I canāt speak to it Iām afraid.
You might also want to try adding the HDMI headless adapter if youāre running your mini headless, as I am, to get resolutions beyond 1080pā¦Iāve found that made all the difference for me in terms of getting CC4C working reliably. It really doesnāt like resolutions at-or-below 1920x1080, in my experience.