Patrik Oldsbergstorybook
This package provides a Storybook build for Backstage. See https://backstage.io/storybook/.
Why is this not part of @backstage/core-components?
This separate storybook package exists because of dependency conflicts with @backstage/cli. It uses nohoist to avoid the conflicts, and since you can only use that in private packages it has to be separated out of @backstage/core-components.