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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.
It's still in the early alpha stage and I literally just cooked up the LCD driver so if you're willing to give it a go and are interested in trying something other than thermaltake's solution (mine also most likely uses less resources but I haven't done many comparisons) please give it a download here: https://github.com/brunostjohn/zefirs-flashy-cooler/releases/tag/v0.0.4. Here's a basic overview of what it does: https://zefirsflashycooler.brunostjohn.com/. And here's my attempt at explaining how to make themes: https://github.com/brunostjohn/zefirs-flashy-cooler/wiki/Themes.