We use Git LFS. Artists keep all of their stuff in a separate directory. As a programmer, I don't have the need for that directory.
Can I create something like a local .gitignore that would prevent that directory from being pulled?
If not, is there a one-liner or something I could alias?
Git LFS has include/exclude functionality, as described in this man page, and in this thread.
All I had to do was type git config lfs.fetchexclude ".\DirectoryWithBigFiles\" into Powershell.
The better solution would probably be to split that part of the repository into a submodule, as described in Nogoseke's answer, but this was just so easy.