The Synology End Game

On that very topic, do HNers have any case and/or motherboard recommendations for a homebrew NAS?

I have my NAS on a shelf in a mini-ITX case, but it only fits two 3.5" HDDs internally (as well as an SSD, but full-size HDDs are what matter for bulk data storage, the more the better)

Also, it takes a normal full-size ATX PSU because I was fed up a previous case that only had room for its own custom PSU, which kept failing under load. But I note there are now standardised small sizes like TFX12V and LFX12V, are there any efficient and reliable PSUs in these form factors?

its not the smallest, but the Fractal Node 304 is nice IMHO.

I'm using that case with with a 200mm fan front-panel mod[1]. Despite its size, it gets pretty cramped. It's just hard to keep it organized without a dedicated SATA backplane.

[1]: https://www.printables.com/model/866109-200mm-fan-front-for-...