Migrating off Heroku to AWS without killing your deploy speed: the tools that actually help

A practical guide to moving off a managed platform like Heroku onto AWS without losing git-push deploys, preview environments, or developer velocity - with a side-by-side comparison of AWS App Runner, ECS Fargate, EKS, Render, Railway, Fly.io, Vercel, Porter, Northflank BYOC, Terraform, and Qovery, plus a 5-phase migration sequence and how to get the migration itself funded by AWS.