# Retention at Rank 4

|                  |                                 |
| ---------------- | ------------------------------- |
| **Report Date**  | Date of submission (2025/06/11) |
| **Submitted by** | Bryan Chen                      |

## Member details

- Matrix username: @xlchen:matrix.org
- Polkadot address: 14DsLzVyTUTDMm2eP3czwPbH53KgqnQRp3CJJZS9GR7yxGDP
- Current rank: 4
- Date of initial induction: Seeding
- Date of last report: 2024/12/09
- Area(s) of Expertise/Interest: XCM, Frame, Runtime, Testing, JAM, Tooling

## Reporting period

- Start date: 2025-01-14
- End date: 2025-07-13

## Argument

During this reporting period, I led a team to create the JAM client **Boka**, focusing our efforts on the PVM recompiler and the guaranteeing process as defined in the JAM graypaper.

Simultaneously, I architected and guided the first release of [PVQ](https://github.com/open-web3-stack/PVQ), defining its modular interfaces and delivering a full end-to-end demonstration. This work creates a foundation to be able to define standardized interfaces for client to access onchain data. Then we can build chain-abstraction layers and make multi-chain applications easier to build and maintain. As part of the demo, we will create a multi-chain Swap UI showcasing this.

To ensure these components remain robust, I have continuously maintained the [polkadot-ecosystem-tests](https://github.com/open-web3-stack/polkadot-ecosystem-tests) suite—reviewing community pull requests, resolving issues, and updating test scenarios to reflect the latest runtime and XCM changes—and overseen upkeep of **Chopsticks** to guarantee local multi-chain environments mirror production behavior. These infrastructure contributions accelerate CI workflows today and smooth the path for seamless network upgrades and onboarding of new builders tomorrow.

Finally, I actively participate in peer review across Polkadot-SDK and related repositories—providing detailed feedback on pull requests, issues, and RFCs—and engage in JAM working-group discussions on Matrix and Discord. 

## Voting record
*Provide your voting record in relation to required thresholds for your rank.* 

|  Ranks | Activity thresholds | Agreement thresholds | Member's voting activities | Comments |
|---|---|---|---|---|
|IV| 60% | 90% | 65% / 100% | excluding some invalid referenda |