Moving Off a Managed PaaS to AWS: What to Check First, and the 8 Tools That Make the Move Painless

A practical migration playbook for leaving Heroku, Render, Vercel, or Fly.io for AWS: the criteria to check before you commit, the real TCO math, and the eight tools - from Infracost and Kubecost to internal developer platforms - that keep the developer experience you are about to give up.