How to Quickly Migrate All App Data Between Two Different Phoenix Instances

Supposing i have 2 different instances of phoenix (at 2 different links, with 2 different app databases, etc.) called which I will call "good instance" and "bad instance". What would be the quickest way to migrate all of the app data (experiments, datasets, API keys, etc.) from the "good instance" to the "bad instance"? (it can overwrite everything in the bad instance if need be)