I was wondering if there's a specific process to migrate - not in/out of Prismic - but changing the codebase plugged to an existing prismic repository.
Just pointing our new codebase to the old repository would do the job? Or is there a risk of lost data here?
Your project reads the API content and matches the Slice content to the local Slice components. It's up to you to code the Slice components to use the API IDs.