A simple demo of a combinator library for forms, and a client-side implementation.
This is not production-grade, the combinators are still too limited, and the provided renderer has layout issues. Still I think this approach is promising. You can watch the repo for updates.
In development, build it with sbt packageJS, and open index-dev.html in a Web browser.
Or build the optimized version with sbt optimizeJS, and open index.html.