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David Federman

PROFILE

David Federman

Over a two-month period, contributed to both frontend and backend improvements across jellyfin/jellyfin-web, jellyfin/jellyfin, and AvaloniaUI/Avalonia repositories. Enhanced user experience in jellyfin/jellyfin-web by redesigning deletion confirmation prompts for collections and playlists, clarifying messaging to reduce accidental deletions using JavaScript and UI/UX design principles. In AvaloniaUI/Avalonia, modernized dependency management by onboarding Central Package Management, removing obsolete dependencies, and updating NuGet configuration with C# and XML, streamlining builds and improving maintainability. Addressed a null reference bug in jellyfin/jellyfin’s episode retrieval logic, increasing runtime stability and reliability for users. Demonstrated skills in C#, JavaScript, and package management.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
513
Activity Months2

Work History

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly performance summary highlighting two high-impact initiatives across AvaloniaUI/Avalonia and jellyfin/jellyfin. 1) Dependency Management Modernization (Central Package Management onboarding) in Avalonia: onboarded the project to Central Package Management, removed SharpDX, updated NuGet.config package source mapping, and inline properties in project files to improve dependency clarity and streamline the build process. Commit: ea7e9a7aed8fa32a6b003f3ebbe3dec49b4f1e73. 2) Episode Retrieval Stability: GetEpisodes Null Reference in Jellyfin: fixed a null reference when a season is not linked to a series, preventing crashes and improving reliability of episode browsing. Commit: bdfb6edfa3bb0ed1b4876edb3c1cf8f42b7486de. Overall, these changes reduce maintenance burden, improve build reproducibility, and enhance runtime stability. Demonstrated skills include Central Package Management adoption, NuGet.config configuration, MSBuild property inlining, and robust defensive programming for null references.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary focusing on key business value and technical achievements for jellyfin/jellyfin-web, with emphasis on UX improvements and defect resolution.

Activity

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Quality Metrics

Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance93.4%
AI Usage26.6%

Skills & Technologies

Programming Languages

C#JSONJavaScriptXML

Technical Skills

C#C# developmentJavaScriptNuGet configurationUI/UX designbackend developmentdependency managementfront end developmentpackage management

Repositories Contributed To

3 repos

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

jellyfin/jellyfin-web

Jan 2026 Jan 2026
1 Month active

Languages Used

JSONJavaScript

Technical Skills

JavaScriptUI/UX designfront end development

AvaloniaUI/Avalonia

Feb 2026 Feb 2026
1 Month active

Languages Used

C#XML

Technical Skills

C# developmentNuGet configurationdependency managementpackage management

jellyfin/jellyfin

Feb 2026 Feb 2026
1 Month active

Languages Used

C#

Technical Skills

C#backend development