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Alexander Vieth

PROFILE

Alexander Vieth

Over a three-month period, this developer contributed to the microsoft/vcpkg repository by upgrading and integrating C++ libraries, focusing on dependency management and build system optimization. They upgraded the Eigen library to improve compatibility and performance, removed obsolete patches, and updated CMake configurations to ensure stable cross-platform builds. Addressing dependency compatibility, they fixed Eigen3 integration issues for libscran-umappp, stabilizing the CI pipeline for downstream consumers. Additionally, they streamlined the ltla-subpar port by vendoring dependencies and enabling parallelization, which accelerated builds and improved reproducibility. Their work demonstrated proficiency in C++, CMake, and dependency management within complex build environments.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
383
Activity Months3

Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for microsoft/vcpkg: Implemented parallelization support and streamlined build for the ltla-subpar port by vendoring ltla-sanisizer, updating the port version, and disabling external fetching and tests to improve build speed and determinism. No major bugs fixed this month in this repository. Overall impact: faster, more reproducible builds, smoother CI, and better scalability for future enhancements. Technologies: C++, build systems, dependency vendoring, port management, and CI optimization.

February 2026

1 Commits

Feb 1, 2026

February 2026 (microsoft/vcpkg): Delivered a targeted fix for Eigen3 dependency compatibility in libscran-umappp and upgraded to version 3.2.0. The change was implemented via commit c7b29f3c42083da152fd87bb8e34477bf1922b36 (PR #50045) and stabilizes the build pipeline for downstream consumers.

August 2025

1 Commits • 1 Features

Aug 1, 2025

Month: 2025-08 focused on delivering a critical dependency upgrade in microsoft/vcpkg. Implemented the Eigen library upgrade to version 3.4.1-250818, removed an older patch related to vectorized reductions, and updated portfile.cmake to reflect the new version and adjusted build configurations. This work improves compatibility with latest Eigen features and fixes, and paves the way for improved performance and stability in downstream packages.

Activity

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Quality Metrics

Correctness86.6%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage26.6%

Skills & Technologies

Programming Languages

C++CMakeJSONc++cmake

Technical Skills

C++C++ developmentC++ library integrationCMakeCMake configurationDependency ManagementDependency managementbuild systemsdependency management

Repositories Contributed To

1 repo

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

microsoft/vcpkg

Aug 2025 Apr 2026
3 Months active

Languages Used

c++cmakeC++CMakeJSON

Technical Skills

C++ library integrationbuild systemsdependency managementC++ developmentCMake configurationDependency management