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Jack Sun

PROFILE

Jack Sun

Sunjiazheng focused on modernizing and securing build systems for the coolsnowwolf/immortalwrt and DragonBluep/openwrt repositories, delivering upgrades to core tooling and cryptographic libraries. Using C, CMake, and Shell, he improved build reliability by updating CMake and Meson versions, enabling parallel builds, and refining patch management to reduce platform-specific failures. His work included consolidating dependency updates, enhancing cross-platform compatibility, and implementing security patches such as the OpenSSL 3.5.6 upgrade to address multiple CVEs. Sunjiazheng’s contributions emphasized traceability, reproducibility, and maintainability, providing a stable foundation for future development and reducing risk across CI/CD pipelines and production deployments.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

12Total
Bugs
1
Commits
12
Features
4
Lines of code
166
Activity Months5

Work History

April 2026

1 Commits

Apr 1, 2026

April 2026 monthly summary for DragonBluep/openwrt: Delivered a critical OpenSSL security patch by upgrading to version 3.5.6 across the repository, addressing a set of vulnerabilities and stability issues to enhance security posture and reliability. The patch includes fixes for NULL pointer dereferences, heap buffer overflows, and key-management edge cases (CVE-2026-31790, CVE-2026-2673, CVE-2026-28387, CVE-2026-28388, CVE-2026-28389, CVE-2026-28390, CVE-2026-31789). Implemented via commit 62ea6aad4705e88acb26f26803bfd20e17e9c8b3, with no refresh patches required. Linked PR: openwrt/openwrt #22847. The change reduces security risk for devices built on DragonBluep/openwrt and improves stability of TLS/key-exchange paths across deployments.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for DragonBluep/openwrt focusing on build-system modernization and cross-environment reliability. Delivered an upgrade to CMake 4.3.1 and refreshed patches to ensure consistent builds across diverse environments; added specific patch adjustments to bootstrap parallel make, zstd-libarchive, and Xcode generator handling. Notable outcomes include reduced environment-specific build failures, smoother CI across multiple platforms, and improved maintainability of the OpenWrt build system.

February 2025

6 Commits • 1 Features

Feb 1, 2025

February 2025 performance summary for coolsnowwolf/immortalwrt centered on upgrading core build tooling and cryptographic libraries to latest stable releases, delivering improved security, stability, and cross-target compatibility. The work provides a solid foundation for subsequent feature work and reduces build risk across the CI/CD pipeline.

January 2025

2 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for coolsnowwolf/immortalwrt. Focused on delivering build tooling upgrades to improve build reliability and compatibility across architectures. No major bug fixes recorded this month. Core changes center on upgrading build tooling with traceable commits, confined to Makefiles to minimize risk and maintain stability for the next release.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for coolsnowwolf/immortalwrt: Focused on build system modernization to improve reliability and developer velocity. Delivered targeted updates to the CMake-based build, addressing libressl linking issues, enabling parallel builds, and enhancing compatibility across platforms. Implemented zstd support in libarchive and removed the Xcode generator to reduce platform-specific failures. Updated to CMake 3.31.3 with the Makefile reflecting the new version and hash to ensure traceability and reproducibility.

Activity

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Quality Metrics

Correctness96.6%
Maintainability95.0%
Architecture95.0%
Performance91.8%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakeMakefilePatchPerlShell

Technical Skills

Build SystemBuild System ManagementC programmingCMakeDependency ManagementPackage ManagementPatch ManagementSoftware Updatesbuild system managementlibrary managementsecurity patchingsoftware development

Repositories Contributed To

2 repos

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

coolsnowwolf/immortalwrt

Dec 2024 Feb 2025
3 Months active

Languages Used

MakefilePatchPerlShell

Technical Skills

Build System ManagementPatch ManagementBuild SystemDependency ManagementPackage ManagementSoftware Updates

DragonBluep/openwrt

Mar 2026 Apr 2026
2 Months active

Languages Used

C++CMakeMakefile

Technical Skills

CMakebuild system managementsoftware developmentC programminglibrary managementsecurity patching