Investigate ERC4337: How much work to integrate? Is it worth doing?

EIP4337 is a neat and official way to make multi-sig wallets and social recovery wallets, and to reduce TX fees by bundling transactions.

### EIP4337: Account Abstraction

With EIP4337 there's a higher level mempool that we can submit transactions to that can, at some point get bundled up together and submitted as a single transaction to the main mempool. In addition it provides a way to fund transactions via third party - user submits the tx, contract pays for it under specific rules.

It seems like we could use this with attestations so people can mint NFT using their attestation without paying any gas (we have a contract to pay gas for this sole purpose). So this feature might be useful for attestation based NFT sites we build.

It also allows usage of different signature protocols, like BLS, which could reduce gas fees further and open up a new front of attestation use cases.

https://medium.com/infinitism/erc-4337-account-abstraction-without-ethereum-protocol-changes-d75c9d94dc4a
https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4337.md