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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.
W3C Web Monetization: https://webmonetization.org/ :
> The Web Monetization API allows websites to automatically and passively receive payments from Web Monetization-enabled visitors.
From https://interledger.org/faq/ :
> Web Monetization is being proposed as a W3C standard. Using the Interledger Protocol, the Web Monetization proposed standard aims to make it easier for web creators to generate income from their work without relying on advertising, site-by-site subscriptions or tracking models.
Interledger was contributed to W3C and has undergone significant major revision. FWIU, W3C Interledger Protocol is a W3C spec but by producing IETF-style numbered RFCs, their process differs slightyl from the W3C WG Working Group model (with a page, a mailing list; and one or more git Repositories with Issues: github,com/orgname, github,com/orgname/readme, github,com/orgname/orgname.github.io ).