[guilhermetk]

Go for it, it's really worth the effort, even if it is a small one, with the bonus of being fun (at least for me it is). I can't imagine setting up my home network without pihole, and I'm considering setting it up at work, I manage a small network with 100 devices connected to the internet.

[benplumley]

Can a Pi really keep up with that size of network or would you run it on more powerful hardware/a VM?

[theandrewbailey]

DNS is a very light protocol. In addition, responses tend to be cached, so it's not like the Pi would be hit with a dozen queries on literally every page load for every client on the network.

[guilhermetk]

As @theandrewbailey mentioned, DNS is light protocol, I guess even older PIs would handle it pretty well. But, as a permanent solution, I would opt to set up on a VM/Docker so that I could have snapshots to quickly recover the service in the event of a problem.