I strongly recommend to automate form generation based on JSON schema what will enable zero coding for maintenance tasks like e.g. synchronization with model changes.

As form code is the most important entry point for security flaws in web applications it is also the most expensive and it is not a good idea having to touch production code for every little backend change. This looks like PHP coding 15 years ago. Do not do that.

Can you point to a real world example of what you mean?

I think I have heard of something similar but it didn’t seem to have caught on in any major web frameworks that I know of (strongly typed json API server which generates runtime validators on frontend and backend). Even then most people want control over the presentation of the form and wouldn’t want to create fields from the schema (e.g. a number type is sometimes a slider and sometimes a drop down)