Parsec is a very useful too...

On-chain payment protocol

Amulet is a decentralized cover protocol for the Rust-based ecosystem with initial deployment on Solana.

Building the Liquidity Platform for Stables on Solana

Performant L1

EigenLayer is a protocol built on Ethereum that introduces restaking, a new primitive in cryptoeconomic security. This primitive enables the reuse of ETH on the consensus layer. Users that stake ETH natively or with a liquid staking token (LST) can opt-in to EigenLayer smart contracts to restake their ETH or LST and extend cryptoeconomic security to additional applications on the network to earn additional rewards.