Over the time (as part of researching competition) i also hear a lot of fans of retool with rave review (though never specifics as to what they are using it for). And i get it's appeal for building the UI, drag and drop, you see it directly and all the props of all components are there in the UI with documentation. But putting together the UIs is not what i find hard (using libraries like Reach-Admin). For me it seems way more time consuming having the UI interact with the actual backend/db and when i see in retool that this is done by "write a bunch of SQL for each table/button/screen" and they are just there in a list ... i just don't see how this is scalable/manageable for a internal tool with 10-20 screens. Also all the input validation is on the frontend ... did i miss some docs somewhere?