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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.
https://github.com/cloudflare/wildebeest
Official install guide is underlying that all the Cloudflare's offerings are still a disjointed bunch. You need to enable billing in 3 separate products in 3 different UIs (while only Images requires an actual paid plan, Access requires a credit card to onboard and Workers Unbound is probably a good idea to enable right away).
Why so much management/onboarding complexity if you really want to compete with AWS as a general-purpose cloud?