24/7 low-power OMV server for Jellyfin, Immich, and AdGuard, etc.

[Enquiries]

I'm building a 24/7 low-power OMV server for Jellyfin, Immich, and AdGuard. Any suggestions?

OS: OpenMediaVault + Docker (using mergerfs/snapraid for a flexible pool)
CPU: Intel Core i5-14500 (for 24/7 low-power Jellyfin Quick Sync)
Case: Fractal Design Node 804 (compact 8-bay mATX cube)
Mobo: ASRock B760M Steel Legend (mATX, for future HBA/PCIe expansion)
RAM: 32GB DDR5 (headroom for OMV + many Docker containers)
PSU: 650W 80+ Gold Modular (for 24/7 efficiency)
OS/App Drive: 2TB NVMe SSD (fast OS/cache, lets HDDs sleep)
Fans: 3x Arctic P12 PWM (replacing stock fans for silence)
Storage: 3x 20TB (1 parity, 2 data. Using a 20TB parity drive for max future expansion)

Is this build overkill?

[ed]

Your build will work very well for OMV, Jellyfin, Immich and AdGuard, but it is definitely on the high side for power and complexity. The i5-14500 delivers great Quick Sync performance, yet for a 24-7 server you could comfortably use something far lower like an Intel N-series system or a small N100 or N200 mini PC with PCIe expansion, which would cut energy use dramatically while still handling Jellyfin hardware transcoding, Immich indexing and your Docker stack. Even an i3-14100 or i5-13500 would be more than enough if you want to stay on desktop hardware. Everything else in your setup is well chosen, although the 650 W PSU is larger than needed for a machine that will idle most of the time, and a good 450–550 W Gold unit would be more efficient. The Node 804 plus B760M board and 32 GB RAM give excellent expansion headroom, and your mergerfs plus SnapRAID plan using three 20 TB drives makes sense. In short, the build will perform exactly as intended, but you can save energy and money by going with a lower-power CPU or even a compact N-series mini PC platform without losing the functionality you need.