Wireguard and cudy LT18

can some tell me how to set up wireguard please my router cudy LT18 has it but i have no idea how to set it up nor do cudy technical.can some one point me to some sort of info? thanks

What are you trying to do exactly? Are you trying to setup wireguard client and use a service like NordVPN or ProtonVPN? Or are you trying to setup a home VPN to access your home network as a road warrior? Unfortunately, the wiki for both wireguard server and wireguard client are only CLI instructions, but they are thorough and to the point.

If you’re insistent on using luci and are trying to setup wireguard as a client, check out dev odyssey’s video on YouTube here

wireguard is a software feature, which works (almost[0]) the same on any supported device, so there's nothing specific to your device to consider.

[0] adding VLANs for VPN/ non-VPN traffic would differ for swconfig vs DSA devices, but that's quite distinct from getting wireguard to work in the first place.

For starters, have you installed an official version of OpenWrt?