Yes, I have a Pi4 2GB, it’s still working as a second pi hole node. That’s what got me into the world of self-hosting, but 2GB is not enough for a lot of things. I went from that to a N100 with 16GB of RAM, so the difference is huge and I think it’s totally worth the money.

I haven’t tried Immich, but I probably will once I have a better solution for storage.

I just have the included 500GB SSD and an external 2TB HDD, but I’m planning on getting a 4TB 2.5" SSD to put it inside the mini PC, since it has an extra slot for that.

I recently got the Beelink Mini S12 Pro. I’m completely impressed with its capabilities, especially for that price. I got the 16GB Ram N100 version. Great piece of hardware.

I’m running 27 different services, including the *Arrs, Jellyfin, paperless-ngx, home assistant, and even stuff like Kasm workspaces and emulatorjs.

I think you can get the full Orange Pi kit (Pi + sd + power adapter + case) for around 60 bucks on Amazon. There’s also the option of going with a mini PC, you could find them from around 120 bucks.

I know you’re not asking for hardware recommendations, but using an old PC may increase your electric bill way more than any of these options, so that’s something to bear in mind.

After reading all the comments I’m thinking it really comes to what you’re able to see. If you see no difference between 60 and 120, good for you, set it to 60 and save some battery. If you’re able to see the difference, like I do, you’ll just enjoy the extra smoothness. I’ve always seen the difference between 60 and 90/120. I think it also comes to the content. For me it’s like this:

• For videos, whatever refresh rate is ok as long as that was the intent of whoever created it.
• For games 30 is playable, 60 is good, 120 is beautifully smooth. The type of game will also play a role here. An fps will benefit more from higher refresh rates.
• For moving UI elements 30 is unusable, 60 is ok, 120 is really comfortable.

TL;DR Some people will see it, some people won’t. Do whatever works best for you.

You should be really wealthy, my friend.