By having a more generic protocol on top, it allows the same tools to be used for different specific end results. So shared libraries and common debugging tools

By having a more generic protocol on top, it allows the same tools to be used for different specific end results. So shared libraries and common debugging tools can benefit more use cases. You might even make a "higher-order" tool that can work with any willow data, at the cost of specific UI affordances that can be used when you know more about the underlying data. This is sort of how ActivityPub is a thing, but it underpins multiple, sorta-but-not-really interoperable systems like Lemmy and Mastodon.