I’ve been a huge fan of Heroku since the early days. They were true pioneers of platform as a service, git push heroku master was magic when it first appeared, and they made building scalable web apps and services genuinely easy at a time when the alternative was wrestling with EC2 instances and shell scripts.
A lot of us built our first production apps on Heroku, and the developer experience they created shaped how an entire generation thinks about deployment.
On February 6, 2026, Heroku announced that it is entering a sustaining engineering model. No new features, no new enterprise contracts. If you’re starting to think about what comes next, Magic Containers offers a straightforward migration path.
If you’ve been building twelve-factor apps on Heroku environment-based config, stateless processes, and backing services as attached resources, you’ll find that most of those principles translate directly to containers. The deployment model is different, but the thinking is the same.
How Heroku concepts map to Magic Containers
If you're familiar with Heroku, here's how the terminology translates:
Heroku Magic Containers App Application Dyno (web/worker) Container Buildpack Docker image Add-on (e.g. Heroku Postgres) Additional container in the same app Procfile Container image entrypoint Config Vars Environment variables heroku.yml / Dockerfile deploy Docker image from Docker Hub or GitHub Dyno scaling Autoscaling (min/max instances per region) Pipeline (staging/production) Separate applications per environment Region (US/EU) 40+ regions worldwide
Key differences
No buildpacks, just Docker images: Heroku uses buildpacks to detect your language and build your app automatically. Magic Containers runs standard Docker images, giving you full control over your runtime, dependencies, and build process. You can deploy any public or private image from Docker Hub or GitHub Container Registry in any language or framework.
Heroku uses buildpacks to detect your language and build your app automatically. Magic Containers runs standard Docker images, giving you full control over your runtime, dependencies, and build process. You can deploy any public or private image from Docker Hub or GitHub Container Registry in any language or framework. Multi-container composition with persistent storage: Heroku apps typically run as a single dyno, with databases provided as separate add-ons connected over the network. Magic Containers allows multiple containers within the same application that communicate over localhost . This lets you run your app alongside its database without an external hosted database service. Persistent volumes provide durable storage so database files, uploads, and application state survive redeployments and restarts.
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