CoCalc feature
Online Software Environments
Pick the software image your project runs on.
Choose an available image for a hosted CoCalc project, from a lean base to a scientific stack. Check included software, customize persistent storage, and record versions for reruns.
Choose a software image per project — from lean base systems to full scientific stacks — and customize it from there.
Pick the software, keep your changes
Hosted CoCalc projects use runtime images. Check the catalog entry for included languages, kernels, apps, version, and compatible hardware; choosing a GPU image does not provide GPU hardware.
Installs in persistent home or writable system storage survive normal restarts. Publish a configured system environment for a team or course, preserving research data separately from the image.
- Check catalog software, versions, and release channels before selecting an image
- Changing a running project's image queues a restart; one previous image is retained for rollback
- Build custom images from a declarative recipe or a Binder-style repository
- Managed base-image layers do not use project disk quota; writable project files and changes do