--- tags: Ethereum Protocol Fellowship --- # EPF update 2 ## Virtual Machine with native code emission I am quite interested in [Virtual Machine with native code emission (IL VM)](https://github.com/eth-protocol-fellows/cohort-three/blob/master/projects/project-ideas.md#by-%C5%82ukasz-rozmej) proposed by Łukasz Rozmej. I used to work on some virtual machine before and like to explore this. I reached out to Lukasz in discord and he gave more details for me to explore. Nethermind already got [a proof of concept pr](https://github.com/NethermindEth/nethermind/pull/3888) for it. But sadly, I never wrote C# before and I dived my into [C# documents by microsoft](https://learn.microsoft.com/en-us/dotnet/csharp/tour-of-csharp/). I need to understand a few basic feature of C# and then look at the pr. ## EIP-4337 account abstraction Besides, I am also interested in the AA-wallet ideas. I took a good look at the [EIP-4337](https://eips.ethereum.org/EIPS/eip-4337) and I found @Vid who is another EFE participant also interested in the idea and he starts the repo [aa-bundler](https://github.com/Vid201/aa-bundler) to write the bundler in rust. I am trying to reach out to him and cooperate with him.He is trying to document the general pichture of the codes first. I would try to catch up with him with more details. ### Exploring eth-infinitism EIP-4337 Read EIP-4337 implementation in [eth-infinitism/account-abstraction](https://github.com/eth-infinitism/account-abstraction). I tried to run tht tests there and understand the details of the implementation but I don't know too much about hardhat. Need to get into the docs about the [hardhat](https://hardhat.org/tutorial/testing-contracts). Met an error on running the tests. ```bash $ npx hardhat test No need to generate any newer typings. An unexpected error occurred: test/entrypoint.test.ts:763:19 - error TS2339: Property 'deadline' does not exist on type 'void | ([BigNumber, BigNumber, BigNumber, string, string, string, string] & { preOpGas: BigNumber; prefund: BigNumber; ... 4 more ...; offChainSigInfo: string; })'. 763 const { deadline } = await entryPointView.callStatic.simulateValidation(userOp, false).catch(rethrow()) ``` It is some typescript error. But I didn't dig into that. I just comment that test out and continue. # Next step 1. Run the tests in [proof of concept pr in nethermind](https://github.com/NethermindEth/nethermind/pull/3888) and try to figure out what should be done. 2. Take a look at the codes in [eth-infinitism/bundler](https://github.com/eth-infinitism/bundler). # Reading List This Week - [zkEVM (Scroll)](https://hackmd.io/@yezhang/S1_KMMbGt) - [A good twitter thread to introduce zkEVM](https://twitter.com/LuozhuZhang/status/1538166119785111552?s=20&t=o9hnHeP1na00u6gldaxnCw) - [stakers-testnet](https://notes.ethereum.org/@mario-havel/stakers-testnet) - [Hills encryption](https://en.wikipedia.org/wiki/Hill_cipher)