How can I route traffic from a wireguard interface to a specific interface in OpenWRT?

I have an ASUS router with OpenWRT 22.03 at home. It has internet on the wan port, a br-lan that shares the local eth0.1 and wlan0-1 on a virtual bridge and a network named cam that is also a wireless network used for my camera. The wlan0-1 is an AP that my devices locally use to connect to the network. I also set a wireguard vpn up with the interface name x that connects to my work router on the same lan as my work machine. So to summary: wan - internet br-lan (local lan ports and wlan0-1 (local wifi ap) ) - 192.168.4.1/24 (static ip) cam (wireless camera) - 192.168.200.0/24 (DHCP) x (wiregua

Question by SPL on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.