After a hardware upgrade I ended up with a spare mini pc. Noticed these two icons and thought I might be able to use it as a WiFi access point with VLANs using OPNsense.

Is that possible? If so, what do I even need to buy to plug into there?

I don’t need it to do any fancy dhcp, dns or firewall stuff, I just need a WiFi access point with support for VLANs.