What you are building here is a bit more than just a pure NAS as you seem to need more services running as well. A pure storage pool on your local network do not require very much computational power. If, however, you want your NAS to do more than just being a NAS, it really isn't a NAS anymore but is now a server of some capacity that also can act as a NAS. My own NAS is OMV running on a celeron @2 GHz, 4GB of RAM and 80 TB storage. Runs smooth as butter. There's no need to shoot birds with ICBMs

Barracuda are SMR drives and might issues with TrueNas ZFS. Google the issues. Best to upgrade to the CMR drives.

NICE

Great video!

Very well made video! I would be interested in seeing the idle power draw for your system I've been tossing and turning on cpu/mobo choice myself, and while the AMD AM4 platform is especially well priced vs the Intel LGA1700 platform, I feel like in the long run, the idle power draw for the NAS would be a major deciding factor in the overall price in the build, for me anyways Thanks again for the detailed video

Thank you for the video. This is a bit of my feedback. As a geek trying to learn I wish you had shown us what you did to the BIOS; the screen was at a tilt, so it makes this old fart very hard to read it. Also, I'd love to have seen a graphic chart of what parts you repurposed, and which were new. The system cost I think was ~>$1k. but didn't break down the old and new prices. Are you really only using 1 16MB RAM stick?? How did you get the 10G network speed, was that on the MB I don't recall you saying. I'd also like to have heard the reasoning and evaluation of the NAS software and if you considered making the NAS an optional DAS as well.

Power consumption should have been an important factor to consider with your build. Yes you don't pay a monthly fee. However running it 24/7 like many of us use a NAS would certainly add a considerable amount to the electricity bill. This should have been factored in to the comparison of the different solutions. Making the build more power efficient would have increased the upfront cost.

Ive never built one before, but have many questions about choosing the best motherboard and processor for my needs. Would be nice to know what motherboards and processors are good options for different use cases.