Here’s what I did: I bought a $50 Dell Optiplex desktop with a 4th generation Intel CPU on ebay. I stuffed in 3 HDDs from ServerPartDeals and a boot SSD I had laying around. This machine draws 50 to 60 watts continuously.

I got caddies for the HDDs from my local used computer parts store. I got 5.25 in to 3.5 in adapters from Amazon.

I added a 10 gig SFP+ card (which isn’t fully utilized since my network is mostly 2.5 Gig). Realistically, the onboard gigabit port is adequate.

I got a SATA PCIe card so I can add a 4th drive if needed.

I also bought a Nvidia Quadro P400 graphics card (similar to a GTX 1050, but half the price) for $30 on eBay for Jellyfin transcoding. I couldn’t get the onboard Intel GPU to play nice with Jellyfin.

Excluding the cost of the drives, this setup cost me about $130.

Tailscale works pretty well, but I usually use Wireguard to connect to my router remotely. I’ve had issues getting Tailscale to work well with my reverse proxy, but I suspect that’s a me problem rather than a Tailscale problem. I have OPNsense and Adguard running on an ancient Mac Mini that serves as my router. (If you follow this route, make sure you get a Thunderbolt Ethernet adapter, not a USB one.)

Certainly!

I’ve never used this one, but it could also work for you.

There’s PairDrop. It might have what you need. It’s for transferring files rather than uploading and then downloading later. You could get creative with authentication. Maybe put files in an encrypted archive file.

When I build my NAS/server last year, I bought a used Dell Optiplex from 2013 on eBay for $50. I tossed in an old SSD I had laying around, and squeezed in 42 TB worth of HDD drives. I added a PCIE SATA expansion card, and a 10 gig network card for 60 bucks to improve performance.

The only real downsides of doing it this way are

• No realistic way of upgrading hardware
• Limited space for internal drives
• No hardware transcoding abilities out of the box
• More power consumption than buying something newer

I use Kopia to backup to Backblaze B2. I also use the Kopia UI since I can’t be bothered to figure out the cli for it. I have it running constantly in the background so it automatically takes care of everything.

I’m using Linux Mint (Cinnamon) with a 3070. I have absolutely zero issues.

I’ve played Stellaris for 12 hours straight, only stopping to go to the bathroom, from 7pm to 7am multiple times. I don’t work nights.

It’s a problem.