I'm not familiar with rollup, but I don't think it's appropriate to set main to anything in 'dist' because it doesn't exist until built. Maybe the bower component
is what you want?

I'm sorry, you're right that this is not the place where main should be set. It should be in the NPM package (I guess one could use Bower via the bower-resolve Rollup plugin in a similar manner; I prefer NPM). The reason why I put this here is that I was confused by the fact that this "raw" package already contains a package.json.

I merged this in my NPM package. Please merge this in the official NPM package, too (and update it, so that my unofficial package won't be needed anymore). Thanks!