(See the best response by Ter13.)
Is it possible for the software to interact with a 3rd party library?

I was wanting to try using a physics library written in C++ to handle physics for a project.

(I apologize if this has been asked before. I tried a couple of quick searches but couldn't find a good example or document on this.)
Best response
Yes. But no.

You can call functions from a C-style DLL. On the server. using call(). However, you are not going to pull off what you want to do using that. It's not nearly fully-featured enough to actually manage a working physics engine on any kind of reasonable scale.

Yes, it could be done. In a test environment. To prove the concept. But it will choke at scale and underperform a softcoded physics engine every time.