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.
surveyjs.io
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worldbuilding
A simple game system for Foundry VTT which allows for flexible definition of Actors and Items to assist with worldbuilding or for running games which do not have a more complete system implementation available.
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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.
Also, you could try using the Simple World building module to get a start making your perfect system. https://foundryvtt.com/packages/worldbuilding
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