Depends on how many communities do you subscribe too and how much activity they have.

I’m running my single user instance subscribed to 20 communities on a 2c/4g vps who also hosts my matrix server and a bunch of other stuff and right now I mostly see peaks from 5/10% of CPU and RAM at 1.5GB

I have been running for 15months and the docker volumes total 1.2GBs A single pg_dump for the lemmy database in plain text is 450M

I have one running on the equivalent of a pi. It works no problem. The biggest issue is the constant io and network traffic but it’s not terrible.

I wish there was a only poll once every x amount of time instead of the constant polling, but it’s a good solution. I use lemmy.world as the main account and the other account when I need to post under my real name with some projects I run. Plus it makes for a good development instance since I work on lemmy from time to time

Raspberry Pi will handle it.

It’s all about the storage space. Processing requirements are minimal.

You really only need Storage. Backblaze B2/Wasabi/Cloudflare R2 if you can afford it, or just get a Hetzner storage box, attach it to the VM, run Minio and off you go.

I am wondering if it is that good to have single instance for feddiverse. It hurt feddiverse servers to send to yet another location, or is it more like p2p so it scales well?

It doesn’t require much resources. You can run on a 5$ linode.