Let me announce my last contribution, Pineapple 🍍.

Pineapple is a browser extension that intercepts and mocks requests made by dApps to check if your address is blocked by a centralized entity. Did you suddenly lose access to the frontend of famous DeFi dApps? Then this extension is for you. This extension is ready to use, no configuration is required. Install it and enjoy freedom again.

github.com/qd-qd/pineapple

Off-chain protocols are a promising solution to the cryptocurrency scalability dilemma. It focuses on moving transactions from
a blockchain network like Ethereum to another off-chain system while ensuring users can transact with assets that reside on the underlying blockchain. Several startups have collectively raised over $100m to implement off-chain systems which rely on a validating bridge smart contract to self-enforce the safety of user funds and liveness of transaction execution. It promises to offer a Coinbase-like experience as users can transact on an off-chain system while still retaining the underlying blockchain’s
security for all processed transactions. Unfortunately, the literature for validating bridges is highly disparate across message boards, chat rooms and for-profit ventures that fund its rapid development. This Systematization of Knowledge focuses on presenting the emerging field in an accessible manner and to bring forth the immediate research problems that must be solved before we can extend Ethereum’s security to new
(and experimental) off-chain systems.

By Patrick McCorry, Chris Buckland both from Infura, and Bennet Yee, Dawn Song from Oasis

eprint.iacr.org/2021/1589.pdf