I ran a QNAP with Roon core, it works fine with an i3 or i5 processor. I used a m.2 cache board, 2T SSD for music, I ran Roon Core out of the NAS pool, with the database there too, and backed up the SSD to the NAS pool.
Best with at least an i3 processor, unless you have a small file list. But it did work well, the RoonCore takes care of itself nicely. I even had it do resampling of everything to DSD128 without a hiccup.
I ended up erasing my fanless NUC version of Windows, and installed ROCK. Much less finicky, I use an external USB drive, that’s easy to keep up to date, and back up.
I’m. It sure the NAS is even on anymore, with the ease of cloud storage now a days, I don’t use/need it much. I guess if I ripped videos and wanted to distribute them through the house.