Custom Content Processors in VS Code on Linux

I’m sure this is a really dumb problem, but I can’t seem to find the assembly reference for Content.Pipeline for VS Code to make custom processors. I’m migrating to Linux and VS code, and I already have some custom processors and importers made for the pipeline from my “old Windows days”, but I just can’t figure out how to add the reference. I tried getting the .dll file from one of my old Windows projects, but that doesn’t seem to work.

Any help would be appreciated.

Welp, never mind, I figured it out. I downloaded the Nuget package with the Terminal, and now the references work.