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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.
Both of these were hardware purchases, due to chip shortages the shipment from Id=60 is arriving within the next 20 or so days which will significantly help on the API side. The first one you linked was for the community API, which is 100% functioning and used by a whole range of developers and NFT launches. You are confusing API solutions with network level performance upgrades (I.e. Query Nodes https://github.com/scrtlabs/SecretNetwork/releases/tag/v1.2.5 which are massively going to help scaling)