I host mine (for two users + WhatsApp bridge) on a 4gb 1vcpu vm. When I was using a smaller vm with only 2gb of ram it would hang frequently due to memory exhausting and swapping. I’m using a debian image, and the different components of matrix are containers.

one a VM, the other a container, with different upstream targets. I have to schedule maintenance when everyone is asleep or out of the house. I’ll swear one day I’ll have a proper (raspberry pi) cluster with KVM, I just need to finish implementing the other million things I find when I research it.

And it’s really easy to set up

There’s been a ddos?

You are old enough to be called “sir” by kids.