Trim the size of the closures, they are _way_ too large.

This is going to need a bit of analysis, but currently the closures are hopelessly large, and we should trim them aggressively. We rely on a lot of GH runner cleanup to even make it work. This is not sustainable.

Maybe we should:
- drop documentation
- drop profiling libs? Make them re-downloadable?
- drop excessive hls versions?
- what else is in the closure?

Step 1 would need to be to just figure out what's in the dependency closure and take a good hard look if it needs to be in there. If not, why it's in there.