If both React and Angular are installed and actively controlling different parts of the UI (seen it) I think it’s worth spending the ~8 hours on the replatform.

If both React and Angular are installed and actively controlling different parts of the UI (seen it) I think it’s worth spending the ~8 hours on the replatform. If the main database is a mix of JSON saved in S3 and “the good data” is in mongodb atlas, it’s worth spending the ~12 hours on the migration. But if it’s going from one fotm framework to another, or syntactic sugar type changes, I don’t think it’s worth sinking time into. Should be a clear problem:solution to any architectural choice starting with the core problem.