The Table of Hardware reveals that the GS1900 does work with OpenWRT, so that answers my question perfectly! Thanks!

I’m pretty sure I’ll get a router from GL-iNet, but I haven’t seen them offer any network switches.

And I was thinking about getting a Protectli Vault just to put Sentry Firewall on it between the router and the switch, but that seems like way overkill, and for the price it just doesn’t seem worth it. I’ll just put a NGFW on the switch or the router.

Aha! That’s perfect, thanks. It turns out the GS1900 is compatible with OpenWRT. Good to know!

OpenWisp sounds interesting. Is that similar to Prometheus or Grafana, or does it do more? And should I put that on my router or network switch?

Isn’t that just the firmware? I’m looking for hardware that’s compatible with it

Sounds alright, but it appears to be unmanaged, so it doesn’t meet my needs