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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.
Why was this package deprecated? https://github.com/LedgerHQ/ledgerjs-legacy/tree/master/packages/web3-subprovider
note : we also have a lesser known CLI that could already fit your needs at https://github.com/LedgerHQ/ledger-live-common/tree/master/cli
You have to submit the signed token metadata before signing the transaction - this is done by provideErc20TokenInformation in https://github.com/LedgerHQ/ledgerjs/blob/master/packages/hw-app-eth/src/Eth.js if you need a sample