# EPF Cohort 6 - Week 6 Update There is a change in Ream's priority at the moment and I have been suggested by our mentor to look into the building the Validator for the PQ Testnet that Ream is participating in. Following that, I attended the PQ interop call on Wednesday and spent time reading more into what the testnet entails. This means that my project proposal will have to be scoped out appropriately such that I can complete our Minimum Viable Beacon Chain Validator and also contribute effectively in building the validator for the testnet. Beyond these changes, I worked on the reviews on 2 of my PRs and got both of them merged into Ream! ## Week 6 ### PR Feedback I received valuable feedback from both Kolby ML and Patchoulis on my voluntary exit and attestation wait PR. I made the requested changes and got them successfully merged. ### PQ Devnet I attended the second PQ Devnet meeting that took place on Wednesday (July 23, 2025) that focused on updates, organization and scope of the first PQ Devnet. Following the meeting the scope of the first PQ Devnet (pq-devnet-0), was set to basic signing and minimal fork choice. Within Ream, the objectives are as follows: > 1. Building networking features > 2. Building prototype validator > 3. Building cryptographic features I am interested in building the validator and cryptographic features used by the validator. I believe the work and research I have done previously will help me tremendously in contributing effectively to these pieces. ### Delay in Project Proposal Our project proposal on the Beacon Chain Validator is ready. However the new announcement of the devnet has us focusing heavily on the validator that is mission critical to Ream and they will actually use. Not only is this important to Ream, it's a wonderful experience to be part of major improvements in the consensus layer and I believe we will learn a lot. Our work on completing and testing the Minimal Beacon Chain Validator will continue in parallel. Following this, I am working on refactoring parts of our proposal and I aim to have it in by Week 7 of the EPF. ## Resources 1. [Voluntary Exits PR](https://github.com/ReamLabs/ream/pull/625) 2. [PQ Devnet-0 Initial Specs](https://github.com/leanEthereum/pm/blob/main/pq-interop/pq-devnet-0.md) 3. [Ream PQ Devnet Plan](https://docs.google.com/document/d/1D9seg49KFU_OlgfU94SNeBqmK2Se8HmNMQZOjB1hoA0/edit?tab=t.0#heading=h.kndba08hekmt) 4. [Talks from Beam Day focusing on PQ Devnet](https://hackmd.io/@willcorcoran/BkZ-gs5Bll) 5. [PQ Devnet Meeting 2](https://github.com/leanEthereum/pm/blob/main/pq-interop/meetings/meeting-02.md)