PiHole will run in a VM these days, and doesn't use many resources. For example, I have a copy running on a Pc Engines OpenBSD router. The real time clock is

PiHole will run in a VM these days, and doesn't use many resources. For example, I have a copy running on a Pc Engines OpenBSD router. The real time clock is busted inside the VM, but it's using an early version of their hypervisor; that might be fixed now. Other than that, it works fine.