Heroku mandates the use or 12Factor apps, which makes it much easier to migrate. They support docker as well. Pretty much every app I write I usually starts on

Heroku mandates the use or 12Factor apps, which makes it much easier to migrate. They support docker as well. Pretty much every app I write I usually starts on Heroku and migrate later if the client / traffic needs it, and it’s always been seamless. Most apps have Dev/test on Heroku with a staging and production on AWS, and because of the 12 factor principles, which also work on Beanstalk / ECS / normal servers it’s never a problem.