Linking a rig across scenes

Say I have two scenes: (1) assets, (2) shot_1.

If I create a rigged model in the assets scene, then add a linked copy to the shot_1 scene, I would like to be able to pose the rig in the shot_1 scene without it affecting the pose in the assets scene, or any other scene it gets linked to. This way I can organize my shots as scenes, and each have their own unique animation.

I found I was able to do this by breaking the assets into a separate Blender file, and linking into a “shots” blend file then doing a library override. However, it’s a bit annoying to flip between blend files. Seems like there should be a way to do a setup like this, but all self-contained in a single file. Is there something that mimics what a library override does, but locally within the same file?