Hardware wise I bought a TerraMaster F4-423 used last year for about 300€. It's a great device.
Software wise, I use Fedora Server, although if I had to reinstall now I would use AlmaLinux because I don't need the new stuff coming with Fedora Server on my NAS.
Software wise, I use Fedora Server, although if I had to reinstall now I would use AlmaLinux because I don't need the new stuff coming with Fedora Server on my NAS.