Seeking Guidance on Building a Platform for User-Generated Document Creation

I’m embarking on a project where I aim to create a platform that allows users to generate new documents or content interactively. The goal is to provide a user-friendly and flexible interface where individuals can create, customize, and save their documents. While I have a high-level vision of the project, I’m looking for insights and best practices in building such a platform.

Stack: React, NodeJS, mongoose.

I separate it for main key points:

  1. Interface: What are the best practices for designing an intuitive and user-friendly interface that empowers users to create scheme of documents without technical expertise? I understand how build it just by code, but I don’t want to spend for this couple month.
  2. Data Storage: What are the recommended strategies for storing user-generated documents? I can save scheme in specific scheme table, I can insert document into dynamic created collection. But it would be great to have server side validation.
  3. If I have scheme I can draw grid of data, but would be great to have some library to dynamic configuration.

Are there any best practices, lessons learned, or common pitfalls that I should be aware of when building a platform for user-generated document creation, regardless of the specific use case or industry?

I want to have something like nocode platform for specific needs. In general each created document can have relation to some strong type document, user can change document and we should able to see history. And that created items can used some flow, like item moved to stage1 after to stage2 etc.