# Ethereum Protocol Fellowship Week 1 I have decided to work on L2 and data avilabilty topics. Last week I started by readign and watching following link to get more familiar with the topic: - [EPF Week 1](https://epf.wiki/#/eps/week1) - [EPF Week 2](https://epf.wiki/#/eps/week2) - [EPF Week 3](https://epf.wiki/#/eps/week1) - [How does optimisms rollup really work?](https://www.paradigm.xyz/2021/01/how-does-optimisms-rollup-really-work) - [Arbitrum Go Ethereum](https://github.com/OffchainLabs/go-ethereum) - [From 4844 to danksharding: a path to scaling Ethereum DA](https://ethresear.ch/t/from-4844-to-danksharding-a-path-to-scaling-ethereum-da/18046) For the next week I am planning to simulate a whole life cycle of an L2 transaction to understand it more deeply.