When we initially had the Bump idea, we though that it would be absolutely perfect to be able to handle any kind of documentation.
This said, at the moment, we are focusing on OpenApi to offer the best support of this specification.
If you have tried Bump, you probably already have discovered that we don't support the whole Swagger / OpenApi specification.
There are 2 reasons to that:
first, we are a fresh new project, which is far from being complete. So we can have decided to postpone some features due to our priorities.
second, we can just have decided that a specification feature adds too much complexity to the documentation, and have preferred to simply ignore it to keep things simple.
Feel free to ask us why a feature you need is missing, we'll be happy to answer and try to find a solution with you.