-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
There is a shitty official android app, a way better community-made wrapper of the browser game for mobile and a community-made english patch for the game now.
Ironically, the english patch is a side product of the foreign IP block to the gadget server from February 2020 (which still is in place), which lead to a local proxy solution being a popular workaround to this issue, which in turn allowed for easy modification of ingame-assets, making such a project possible in the first place.