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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.
Tiling window managers take a lot of time to learn and configure, and typically require configuration through text files. I would not recommend starting with a true tiling WM. You can use System76's Pop tiling GNOME extension, which still allows you to use the mouse to drag windows as well as add tiling exceptions, or you can install KDE and use Grid-Tiling-KWin. Krohnkite also works, but it might be a little too advanced. Grid-Tiling allows you to meta-drag windows around to change their positions rather than relying entirely on keyboard shortcuts, just like the Pop tiling.
Tiling window managers take a lot of time to learn and configure, and typically require configuration through text files. I would not recommend starting with a true tiling WM. You can use System76's Pop tiling GNOME extension, which still allows you to use the mouse to drag windows as well as add tiling exceptions, or you can install KDE and use Grid-Tiling-KWin. Krohnkite also works, but it might be a little too advanced. Grid-Tiling allows you to meta-drag windows around to change their positions rather than relying entirely on keyboard shortcuts, just like the Pop tiling.