This is really great one. Shameless plug, we've built similar (but smaller) concept for the filter form of our apps[0] (cross platform, natively for Web, Android and iOS) mainly because we were tired of having to change the search filter form fields and logics in every app update. Now, we just have to change the configuration and the filter form changes instantly.

[0]: web version can be found at - https://www.99.co/singapore/rent