[apnsngr]

I don’t know if this fits your particular situation, but I recommend building tutorials into your migration process. I built a tool for migrating apps from Heroku to AWS ECS. The app developer runs the tool in their repository and it opens a migration guide in their web browser. The actual migration was mostly automated but we split it up into steps and embedded them into the guide. This way we could teach app devs the basics of how to use ECS and other AWS services as they went. We could also link out to additional docs and provide company specific details. There was a CLI mode for developers that had to migrate a bunch of apps. The tool was a big success and a couple hundred apps were migrated with it. The migration guide ended up being a good reference for people building brand new apps in AWS too. I built the guide using VuePress, but Docusaurus is also a good option if you are familiar with React.