
Over the past year, Jonathan Ellis contributed to MonoGame and dotnet/android by engineering robust cross-platform features and resolving complex build and runtime issues. He developed a unified asset loading API and enhanced the MGFX shader toolchain, improving content creation and platform compatibility. In dotnet/android, he stabilized Xamarin.Android builds, optimized assembly resolution, and introduced analyzer improvements to reduce false positives. His work leveraged C#, MSBuild, and native interop, focusing on performance, error handling, and developer tooling. By addressing nuanced bugs and refining CI/CD pipelines, Jonathan delivered maintainable solutions that improved build reliability, audio integration, and the overall developer experience across repositories.

October 2025 monthly summary for work across MonoGame repositories. Focused on business value through CI reliability improvements, documentation quality, and release-note accuracy. Delivered fixes and changes in two repos (MonoGame/MonoGame and MonoGame/monogamehub.io.git) with concrete commits and measurable impact on build stability and release communications.
October 2025 monthly summary for work across MonoGame repositories. Focused on business value through CI reliability improvements, documentation quality, and release-note accuracy. Delivered fixes and changes in two repos (MonoGame/MonoGame and MonoGame/monogamehub.io.git) with concrete commits and measurable impact on build stability and release communications.
September 2025 monthly summary for MonoGame/MonoGame focusing on audio subsystem stability through OpenAL DllImport standardization and iOS _Internal usage fix. No new user-facing features released this month; primary work centered on cross-platform stability and code quality for the audio backend.
September 2025 monthly summary for MonoGame/MonoGame focusing on audio subsystem stability through OpenAL DllImport standardization and iOS _Internal usage fix. No new user-facing features released this month; primary work centered on cross-platform stability and code quality for the audio backend.
August 2025 monthly summary for MonoGame: Delivered a targeted fix to iOS OpenAL audio linkage to resolve undefined symbol errors and enable audio builds on iOS. This work aligns with ticket #8938 and uses explicit linking of CoreAudio and AudioToolbox frameworks, improving cross-platform audio parity and reliability for MonoGame apps relying on OpenAL.
August 2025 monthly summary for MonoGame: Delivered a targeted fix to iOS OpenAL audio linkage to resolve undefined symbol errors and enable audio builds on iOS. This work aligns with ticket #8938 and uses explicit linking of CoreAudio and AudioToolbox frameworks, improving cross-platform audio parity and reliability for MonoGame apps relying on OpenAL.
July 2025 performance highlights: Across MonoGameHub.io and MonoGame, delivered targeted features and infrastructure improvements to accelerate development, boost cross-platform compatibility, and strengthen media/audio handling. Key outcomes include: PixelBlocked showcase visuals with updated branding; Wine setup refactor to optimize d3dcompiler_47.dll handling and DirectX installation in Wine environments; OpenAL upgrades (1.24.3.x) across Android, iOS, and DesktopGL with App Store compatibility adjustments; content pipeline build optimization removing redundant targets and improving dependency resolution; and platform code modernization across Android/iOS leveraging generic .NET methods and AppContext.BaseDirectory alignment for .NET 6+.
July 2025 performance highlights: Across MonoGameHub.io and MonoGame, delivered targeted features and infrastructure improvements to accelerate development, boost cross-platform compatibility, and strengthen media/audio handling. Key outcomes include: PixelBlocked showcase visuals with updated branding; Wine setup refactor to optimize d3dcompiler_47.dll handling and DirectX installation in Wine environments; OpenAL upgrades (1.24.3.x) across Android, iOS, and DesktopGL with App Store compatibility adjustments; content pipeline build optimization removing redundant targets and improving dependency resolution; and platform code modernization across Android/iOS leveraging generic .NET methods and AppContext.BaseDirectory alignment for .NET 6+.
June 2025 Highlights: Key features delivered include MGFX toolchain robustness with cross-platform support (DirectX12 and Vulkan) and related fixes (Effect Compiler, WineHelper improvements, and ensuring MGFX uses ExternalToo.Run for consistent execution); macOS NewItem templates discovery fix; and Ink Narrative Scripting System integrated into monogamehub.io. Major bugs fixed include the build error in the Effect Compiler referencing the Pipeline and the macOS template visibility issue. Overall impact: improved build stability, faster and more reliable cross-platform shader tooling, expanded content creation capabilities, and stronger platform support across repositories. Technologies and skills demonstrated: C#, .NET tooling, shader toolchains, cross-platform development, macOS/macCatalyst templating, and Ink scripting integration.
June 2025 Highlights: Key features delivered include MGFX toolchain robustness with cross-platform support (DirectX12 and Vulkan) and related fixes (Effect Compiler, WineHelper improvements, and ensuring MGFX uses ExternalToo.Run for consistent execution); macOS NewItem templates discovery fix; and Ink Narrative Scripting System integrated into monogamehub.io. Major bugs fixed include the build error in the Effect Compiler referencing the Pipeline and the macOS template visibility issue. Overall impact: improved build stability, faster and more reliable cross-platform shader tooling, expanded content creation capabilities, and stronger platform support across repositories. Technologies and skills demonstrated: C#, .NET tooling, shader toolchains, cross-platform development, macOS/macCatalyst templating, and Ink scripting integration.
Month: 2025-05 — Cross-repo focus on correctness of packaging, unified asset management, and contributor experience for open-source bounty workflows. Delivered concrete improvements in Android packaging, introduced a cross-platform asset loading API, and reduced friction in bounty applications to accelerate OSS collaboration.
Month: 2025-05 — Cross-repo focus on correctness of packaging, unified asset management, and contributor experience for open-source bounty workflows. Delivered concrete improvements in Android packaging, introduced a cross-platform asset loading API, and reduced friction in bounty applications to accelerate OSS collaboration.
April 2025 monthly summary for the dotnet/android repository focusing on reliability, developer tooling, and governance improvements. Delivered targeted fixes, debugging support, and ownership updates to improve build stability, developer productivity, and issue triage accuracy.
April 2025 monthly summary for the dotnet/android repository focusing on reliability, developer tooling, and governance improvements. Delivered targeted fixes, debugging support, and ownership updates to improve build stability, developer productivity, and issue triage accuracy.
March 2025 Monthly Summary for dotnet/android development stream, focusing on performance, reliability, and cross-platform stability.
March 2025 Monthly Summary for dotnet/android development stream, focusing on performance, reliability, and cross-platform stability.
February 2025 monthly summary highlighting key features delivered, major bugs fixed, overall impact, and technologies demonstrated across MonoGame projects.
February 2025 monthly summary highlighting key features delivered, major bugs fixed, overall impact, and technologies demonstrated across MonoGame projects.
Summary for 2025-01: Focused on stabilizing and speeding Xamarin.Android builds, expanding runtime capabilities, and improving quality gates. Delivered a set of build-system improvements, added activity-alias Run support, and improved NuGet metadata propagation. Also addressed reliability in tests and analyzer accuracy. Business value includes faster, more reliable builds, clearer guidance for package authors, and reduced test flakiness and false positives, enabling quicker iteration and lower support overhead.
Summary for 2025-01: Focused on stabilizing and speeding Xamarin.Android builds, expanding runtime capabilities, and improving quality gates. Delivered a set of build-system improvements, added activity-alias Run support, and improved NuGet metadata propagation. Also addressed reliability in tests and analyzer accuracy. Business value includes faster, more reliable builds, clearer guidance for package authors, and reduced test flakiness and false positives, enabling quicker iteration and lower support overhead.
December 2024 monthly summary: Delivered repository hygiene improvements and a stability fix for Android MAUI builds. Key outcomes include preventing artifact noise by adding external/android-platform-support to .gitignore, and increasing design-time build reliability through a retry-enabled SkiaSharpTools.Save with environment-configurable retries. These changes improved CI reliability and developer productivity, reduced flaky builds, and demonstrated proficiency with repository hygiene, robust exception handling, and environment-driven configuration.
December 2024 monthly summary: Delivered repository hygiene improvements and a stability fix for Android MAUI builds. Key outcomes include preventing artifact noise by adding external/android-platform-support to .gitignore, and increasing design-time build reliability through a retry-enabled SkiaSharpTools.Save with environment-configurable retries. These changes improved CI reliability and developer productivity, reduced flaky builds, and demonstrated proficiency with repository hygiene, robust exception handling, and environment-driven configuration.
November 2024 monthly summary focusing on delivering user-facing enhancements, reliability, and build-time efficiencies across three repos. Business value was accelerated content delivery, improved user experience, more robust Android builds, and streamlined content tooling, enabling faster release cycles and fewer post-release issues.
November 2024 monthly summary focusing on delivering user-facing enhancements, reliability, and build-time efficiencies across three repos. Business value was accelerated content delivery, improved user experience, more robust Android builds, and streamlined content tooling, enabling faster release cycles and fewer post-release issues.
Overview of all repositories you've contributed to across your timeline