I mean, Github is doing a lot more than the documentation page for Bear, so it's a pretty meaningless comparison.

I'm also a fan of the "only as complex as needed, and no more" approach, but part of applying that approach is admitting when problems have a level of inherent complexity that calls for tools / frameworks to help manage it. The antidote to framework bloat is not the absence of frameworks, it's applying the right amount of them in the right places.