Not exactly what you meant, but I’ve been working on the F#/Giraffe server generator for the OpenAPI generator project.

Write your OpenAPI Schema and run it through generators for the server/DB/client It won’t give you a frontend, but I do believe there are libraries out there to do so for React/Vue.

My fork is @ https://github.com/nmfisher/openapi-generator and you can follow the links back to the original project.

Maybe check out JHipster: https://github.com/jhipster/generator-jhipster (it has admin and user roles only https://www.jhipster.tech/security/ )