Im trying to convert my DocApp. What is a migration repository?
A migration repository is the repository where you’d like to install the DocApp Archive. In Composer, the process for converting a DocApp Archive involves installing the DocApp archive to a repository, then creating a Composer Project based on the installed DocApp. As a best practice, this migration repository should be one where the DocApp Archive has not been installed previously, and none of the artifacts live in the DocApp Archive exist.