Wagtail, a CMS system for Django uses a very similar abstraction to this for their StreamField[1] type and I've found it incredibly useful. It allows frontend s

Wagtail, a CMS system for Django uses a very similar abstraction to this for their StreamField[1] type and I've found it incredibly useful. It allows frontend services and backend services to easily implement custom types, and treats streams of content as a list of 'blocks'. [1]: https://docs.wagtail.io/en/v2.4/topics/streamfield.html https://docs.wagtail.io/en/v2.4/topics/streamfield.html