I see you’re getting lots of advice just to use c/selfhosted as a free consultant. That’s good advice if you’re self-motivated and focused.
If you want someone to be a coach through the process, to keep you focused and moving, that’s a) a slightly different skillset and b) worth putting in the description. I mention this only because I have a bunch of aspirational projects on my to–do list that have just sat there for literally years because of perfectionism, anxiety, and maybe some undiagnosed ADHD. I’ll also counter by noting that a lot of people, this time of year, buy a gym membership on the theory that spending the money will somehow force them actually to go to the gym, only to find that spent money is not actually a motivator.




Depending on the board in your mini-server, you may have enough SATA ports to plug in directly. I have a system similar to what you’re describing (N100 with 4x 2TB HDDs with 1.5TB data): 2 of those drives are set up in RAID1 (mirror), and once a month, I plug in one of the spares, rsync the array to it, and unplug it. Every 3 months or so, I swap the offline drive with an offsite drive. I used to use a USB dock for the offline drive, but I got a 3-bay hot-swap enclosure to make the whole process faster and easier.
The server shares the array via NFS and SMB, and it is absolutely a NAS for all my other systems.
If you expect to exceed 2TB data within 2 years, then you’ll need to replace all 4 of those 2TB drives in 2 years. You might, today, get a pair of 4 TB drives and one 2TB, use the 4TB as your main storage, the 2TBs as rotating backups, and wait until you actually outgrow 2TB to upgrade the backups.