Follow-up from "Resolve "Write a Jupyter kernel for the new DSL""

The following discussion from !61 (merged) should be addressed:

• @jk7683 started a discussion: (+1 comment)

  Is this a separate project and package? Because such a file is always at the top of a package folder. I would suggest either to avoid it or to create another project. Or we should disccuss about the package structure before merge.