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Charon-Fan

PROFILE

Charon-fan

Charon Dian contributed to OneKeyHQ/app-monorepo and KeystoneHQ/keystone3-firmware, building privacy-focused wallet features, DeFi integrations, and hardware wallet support. He engineered Monero and AVAX integrations, overhauled memory management for embedded firmware, and delivered UI/UX redesigns for staking and earning modules. His work included implementing secure transaction flows, QR code handling, and cross-platform theme management using TypeScript, Rust, and C. Charon refactored core modules for maintainability, improved error handling, and enhanced localization. By focusing on modularity and reliability, he enabled smoother onboarding, robust staking, and merchant-facing features, demonstrating depth in both backend firmware and frontend application development.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

137Total
Bugs
22
Commits
137
Features
39
Lines of code
89,690
Activity Months10

Work History

February 2026

10 Commits • 3 Features

Feb 1, 2026

February 2026 focused on delivering merchant-facing capabilities and stabilizing core transaction flows in OneKeyHQ/app-monorepo. Key work includes the Shopify Orders feature with in-app order viewing, localization, UI refinements, and URL configuration improvements; Earn tab enhancements for clearer borrow-transaction displays and hardened claim handling; and Swap history UI/Chart improvements with refined imports, fee formatting, and improved active-state feedback. These changes reduce user friction, improve data visibility, and strengthen the end-to-end experience for orders, earnings, and swaps across the product.

January 2026

33 Commits • 7 Features

Jan 1, 2026

January 2026 (OneKeyHQ/app-monorepo) delivered core Kamino borrow/supply functionality with a comprehensive UI, alongside Earn 0109 and platform rewards enhancements. The work included extensive UI/UX refinements and a focused refactor of the borrow model to improve maintainability and extensibility. A broad set of Kamino UI fixes stabilized user flows across multiple releases and ensured compatibility with Kamino 6.0.0 integration, reducing regressions and onboarding friction for new features.

December 2025

20 Commits • 3 Features

Dec 1, 2025

December 2025 monthly performance summary for OneKeyHQ/app-monorepo. Delivered a major Earn feature overhaul with LISTA token support and staking actions, complemented by a comprehensive UI/UX refresh and robust transaction handling. Implemented Withdraw flow improvements for smoother navigation and modal behavior. Extended cross-platform consistency with Browser Extension Theme Management. Fixed referral error handling in the staking service to ensure resilience against update failures. Performed targeted UI polish and stability improvements across balance display, loading states, and reward tooltips, supported by refreshed refresh logic and simplified account handling. These efforts collectively enhance user engagement with staking features, reduce friction in fund withdrawal, and improve cross-device consistency, aligning with business goals for reliability, conversion, and retention.

November 2025

7 Commits • 3 Features

Nov 1, 2025

Month 2025-11 focused on strengthening Earn module UX and staking capabilities within OneKeyHQ/app-monorepo. Key outcomes include: (1) Earn module redesign with enhanced components and redesigned navigation, delivering a more intuitive earning flow; (2) LISTA token support added in staking configuration and UI, improving token versatility and protocol fetching; (3) Earn UI refinements and micro-improvements, including conditional rendering for EarnBlockedOverview and conditional headers in EarnHomeContent to optimize user experience; (4) extensive bug fixes across the redesign to stabilize flows and UI (addressing multiple OK codes across patch sets). Overall impact: smoother earning experiences, more reliable staking configuration, and a more maintainable UI framework ready for future token integrations. Technologies/skills demonstrated: React-based frontend refactors, component-driven design, conditional rendering patterns, monorepo practices, and protocol data handling for token configurations.

October 2025

8 Commits • 7 Features

Oct 1, 2025

October 2025 summary: Delivered cross-repo enhancements across ava-labs/core-mobile and OneKeyHQ/app-monorepo, focusing on secure wallet integration, expanded provider support, region-aware UX, and performance improvements. Key outcomes include Keystone hardware wallet integration for Core Mobile, regional restrictions messaging in Earn, multi-provider staking/earning (Lista and Stakefish), BNB network support, asset recommendations v2, and graceful no-wallet handling in Recommendations. Also improved spender logic for vault-based staking and withdrawal estimation performance.

July 2025

2 Commits • 2 Features

Jul 1, 2025

July 2025 monthly summary for ava-labs/core-extension: Delivered two hardware-wallet related capabilities that drive onboarding, security, and reliability. 1) Keystone USB hardware wallet integration enabling USB-based Keystone 3 Pro onboarding with improved handling for disconnected devices (commit 825294ce5726f6e110ac64921e2cd11794f75d0d). 2) KeystoneWallet message signing capability in WalletService enabling signing of personal and typed messages with a refactored signing helper for improved reliability and security (commit c3cbdb777c8ac79703fb9b298a7d94347e5ca465). Business value: broader hardware wallet support, smoother onboarding, stronger security posture for message signing, and reduced failure modes in USB flows. No critical bugs fixed this month; improvements focused on reliability and security rather than defect repair. Technologies/skills demonstrated: USB integration, secure signing workflows, WalletService architecture, refactoring for reliability, and security hardening.

March 2025

2 Commits • 1 Features

Mar 1, 2025

March 2025: KeystoneHQ/keystone3-firmware focused on memory management overhaul to improve determinism and stability on SRAM-constrained devices. Implemented an SRAM pool allocator (SramMalloc/SramFree) and added a build-conditional allocator that switches between ExtMalloc/ExtFree and SramMalloc/SramFree based on CYPHERPUNK_VERSION. Ensured RustMalloc/RustFree utilize the SRAM pool. This change reduces fragmentation, improves memory safety, and provides per-build memory strategy configurability.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for KeystoneHQ/keystone3-firmware: Implemented AVAX view type support in the GUI chain module to ensure AVAX is recognized and properly handled within the UI by extending the allowed view types check. Addressed a merge-related AVAX issue (commit 58c38fafd102f2120e6d1309b43df3fa65723b5b) to stabilize AVAX UI integration. Overall, this work improves cross-chain UI consistency, reduces user friction for AVAX workflows, and lays groundwork for future multi-chain expansion.

December 2024

49 Commits • 10 Features

Dec 1, 2024

December 2024 monthly summary for KeystoneHQ/keystone3-firmware: Focused on expanding privacy-preserving Monero capabilities, strengthening wallet connection flows, and stabilizing the build and security posture. Delivered Monero wallet integration with private view key support, enhanced QR code handling for private mode and cyclic data processing, and refined key image generation with additional transaction key support and version-aware logic. Completed substantial build hygiene, including Rust toolchain updates, submodule maintenance, and dependency cleanups, to improve reliability and reduce maintenance risk. Added ChaCha20 nonce update with unit tests, and applied code style improvements to ensure future maintainability. Business value: broader asset support, more robust wallet experiences, and a more maintainable, quieter CI/build pipeline.

November 2024

5 Commits • 2 Features

Nov 1, 2024

Month: 2024-11 — The Keystone3 firmware team delivered foundational privacy-focused feature work and code-quality improvements, advancing long-term business value through expanded asset support, reliability, and maintainability.

Activity

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Quality Metrics

Correctness86.4%
Maintainability85.2%
Architecture83.8%
Performance82.2%
AI Usage30.6%

Skills & Technologies

Programming Languages

CCSSDockerfileGit ConfigurationHTMLJavaScriptMarkdownRustSVGShell

Technical Skills

API IntegrationAPI integrationBackend DevelopmentCC ProgrammingC/C++CI/CDCode FormattingCode RefactoringComponent DesignCryptocurrencyCryptocurrency IntegrationCryptocurrency WalletsCryptographyData Encoding/Decoding

Repositories Contributed To

4 repos

Overview of all repositories you've contributed to across your timeline

OneKeyHQ/app-monorepo

Oct 2025 Feb 2026
5 Months active

Languages Used

JavaScriptTypeScriptCSSHTMLMarkdown

Technical Skills

API IntegrationBackend DevelopmentCode RefactoringDeFiError HandlingFrontend Development

KeystoneHQ/keystone3-firmware

Nov 2024 Mar 2025
4 Months active

Languages Used

CDockerfileMarkdownRustShellGit ConfigurationTOMLYAML

Technical Skills

CC/C++CI/CDCryptocurrencyCryptographyDocker

ava-labs/core-extension

Jul 2025 Jul 2025
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

CryptographyFront-end DevelopmentHardware Wallet IntegrationJavaScriptMessage SigningReact

ava-labs/core-mobile

Oct 2025 Oct 2025
1 Month active

Languages Used

JavaScriptSVGTypeScript

Technical Skills

CryptographyHardware Wallet IntegrationMobile DevelopmentReact NativeState Management (Redux)TypeScript

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