Building a custom Contentful Rich Text editor: the round-trip problem

Contentful allows users to replace the Rich Text field UI with a custom App. While the front-end interface is simple, the primary challenge is the conversion layer that ensures lossless data transfer between the editor's internal model and Contentful's fixed JSON schema. Using PlateJS, which is based on Slate, the author emphasizes that this bidirectional translation layer is the most critical component for ensuring the custom editor functions correctly within the @contentful/rich-text-types framework.