When you do, it would be interesting if the form could be generated with specialized widgets from a JSON Schema Validation.

It would probably be a lot of work, but would make life a lot easier for people who use that. Automatically populating enum dropdowns, numeric range enforcement, etc. On the other hand, you wouldn't need to make your own UI to edit the field typings since many JSON Schemas can be generated from code, or with existing visual tools for people who prefer visuals.