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ethereumjs
An app built using the MEAN stack to use and manage contracts and scripts on your own ethereum testnet.
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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.
Eth2 Phase 0 spec v0.3 is out, named "Let There Be Liquidity", which includes a number of small feature additions/modifications, clarifications, and minor bug fixes.
Augusto Lemble shares EthereumJS, an app using the MEAN stack to use and manage contracts and scripts on your own Ethereum testnet.
Uniswap: https://app.uniswap.org/#/swap?inputCurrency=0x9743cb5f346daa80a3a50b0859efb85a49e4b8cc
More info on EIP-1559 can be found on the official GitHub page. If you would like to support EIP-1559:
I started looking at this last night - https://github.com/sammy007/open-ethereum-pool/tree/develop