I want to integrate Wireguard to my confidential project. I see Wireguard source code is under GPLv2, if I add any patch to Wiregaurd source code to work with my confidentail project, do I need to publish complete source code along with my project source code ?

Any other pointer how I can start work to integrate Wireguard in my project will be highly appreciated.

Thanks & Regards,

Bhashkar