An interesting thought: Babashka already supports Http-Kit. the pedestal.service module doesn't have any servlet API dependencies or compiled classes (those are now in pedestal.servlet). So I think it will be possible to build a Pedestal application in Babashka. I have built something that runs an HTTP service in Babashka for a side project: https://github.com/hlship/dialog-tool and it would be even better to be able to use Pedestal for that.
The dependency of charred (for JSON) will not work with Babashka; perhaps I can convince them to add that as a built-in library.