Anyone here familiar with Rollup? Need some help

Hey fellow indiehackers,

I've been scratching my head over a bundling issue relating to rollup and correctly creating multiple bundles for a chrome extension.

Here is all the details of the issue in this rollup github issue: https://github.com/rollup/rollup/issues/5212

I'm a seasoned TS / Node / JS / React / Full Stack engineer - so if there's some way I can repay the favor if you are able to help me understand the issue then I would gladly do so!