In my consulting business I need to have backup of a lot of data. My own data I backup to AWS. But for various reasons I can't backup customer data to public clouds, and I have quite a lot of this data. My old solution was WD NAS, but it died. I looked around for alternatives and UnRAID looked exactly what I need. In addition to being NAS and supporting various backup protocols it is also Docker containers host and VMs host, including VMs requiring hardware pass through. So I build a server for it. I only used parts that I already had available, so some part choices may not make sense. I'm still in a process of setting all the software up, so far everything is going smoothly.