I have pondered this question long and hard and I'm not sure what I should do. OMV (4.0) currently does alot for me, but might be a small amount to others. It is my File Server, Plex Server, Torrent Box, UNIFI Controller. It runs Readarr, Radarr, Sonarr, Jackett, all in dockers and other Dockers that support those programs. I know information will be missing that you all require and I will provide what I can when I can. I'm not sure what my goal is. I know that I currently use 3 plugs to power it all.
I serve Movies, TV, Music to a Local FireTV 4K Device, The Same 4k Samsung TV when Firetv doesn't like the files, to 1 Samsung S3 Android Tablet late at night. I also have 1 remote user that has 2 1080P TV's with only 1used at a time.
I will list my current specs below so it can help
Lenovo Tiny M900
i7-7600T CPU 2.8GHZ
1 M.2 250gb Primary drive (internal)
2 Mediasonic HF7-SU3S3 Enclosures connected via USB 3.0 (43
5 8TB WD Red/White) Shucked drives
1 3TB HGST
1 4TB Seagate