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ens
Discontinued Implementations for ENS core functionality: The registry, registrars, and public resolvers.
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skipledger
Differential privacy solution for maintaining and exposing information from evolving, append-only journals / ledgers.
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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.
Sign-in with Ethereum (https://login.xyz) in combination with Proof of Humanity (https://www.proofofhumanity.id/) and ENS (https://ens.domains/) would allow you to create a pseudonymous username linked to a wallet address, confirm that it was controlled by a real person and then use it to log into web services from your wallet.
Maybe some useful ideas there.. https://github.com/crums-io/skipledger