SWEPs, Derma, and sending values

As I am working on my own set of customizable weapons for my server, I was wondering if I still have to use the net library to send values to the SWEP when using Derma.

You can use whatever you want, but net library is pretty much the best thing for Derma.

I figured it was, but I didn’t know if I still had to use it if I was calling the panel from the SWEP.