Using Swift Package Manager with Swift Playgrounds books

Hey folks! I am trying to figure out setup in which my playground book would depend on my playground module. Currently I got to the point where I can bundle it with LiveViewHostTest app but the Playground Book is crashing with
Code Block
The operation couldn’t be completed. (PlaygroundBuild.BuildSystem.BuildError error 0.)
Error: Contents/Modules/BookCore.playgroundmodule/Sources/LiveViewSupport.swift:10: no such module 'p5swift'

Inspecting build PlaygroundBook.playgroundbook product I see that there're no binaries being embedded - everything that's in the playgroundbook bundle is just plain code and assets
Is it a known limitation that Playground books don't support external dependancies? Thanks