CollaboraOnline/online
Oct 2024 – Apr 2026
19 Months active
Languages Used
C++HTMLJavaScriptSwiftObjective-CObjective-C++ShellC
Technical Skills
C++ IntegrationCocoa FrameworkJavaScriptSwiftSwift ProgrammingWeb Development
Jan Holesovsky
PROFILE
Jan Holesovsky
Worked extensively on CollaboraOnline/online, delivering cross-platform features and stability improvements across macOS, iOS, and web environments. Focused on robust build automation, UI/UX enhancements, and modular architecture, this developer implemented document-centric workflows, advanced localization, and comprehensive UI testing frameworks. Leveraging C++, Swift, and TypeScript, they enabled seamless integration between native and web components, improved resource management, and streamlined release pipelines. Their work included refining build systems, enhancing accessibility, and introducing automated testing for macOS. By addressing platform-specific challenges and optimizing developer workflows, they contributed to a maintainable, reliable codebase that supports efficient onboarding, rapid iteration, and broad user accessibility.
Overall Statistics
Feature vs Bugs
60%Features
Repository Contributions
115Total
Bugs
26
Commits
115
Features
39
Lines of code
9,997
Activity Months19
Your Network
317 peopleSame Organization
@collabora.com91
Shared Repositories
226
Tron LeeMember
TUCAOEVER5023416dba724da7Member
Aitor AstorgaMember
aarsh21Member
Adrien NMember
Adria FigueraMember
Aindriú Mac Giolla EoinMember
Alexander GabilondoMember
AliMember
Work History
April 2026
10 Commits • 1 Features
Apr 1, 2026April 2026 (CollaboraOnline/online): Key improvements to the macOS UI testing framework and build stability. Delivered a comprehensive UI test upgrade including direct test-file launching (--testFile), webview accessibility identifiers, and a message-log buffer for reliable assertions; added a test helper library and sample documents; introduced an embedded HTTP server with a JSBridge-based test driver for WKWebView automation; ensured editing mode before typing and improved focus handling; implemented test-file copy into the app's writable temp directory to prevent document-lock issues; added an HTTP JSBridge client for test-driver communication. Build cleanup addressed a build error after context-menus removal. In total, 10 commits across these changes. Business value: more reliable automated UI tests, faster feedback, expanded test coverage, and higher confidence in UI quality." ,
10 Commits • 1 Features
Apr 1, 2026April 2026 (CollaboraOnline/online): Key improvements to the macOS UI testing framework and build stability. Delivered a comprehensive UI test upgrade including direct test-file launching (--testFile), webview accessibility identifiers, and a message-log buffer for reliable assertions; added a test helper library and sample documents; introduced an embedded HTTP server with a JSBridge-based test driver for WKWebView automation; ensured editing mode before typing and improved focus handling; implemented test-file copy into the app's writable temp directory to prevent document-lock issues; added an HTTP JSBridge client for test-driver communication. Build cleanup addressed a build error after context-menus removal. In total, 10 commits across these changes. Business value: more reliable automated UI tests, faster feedback, expanded test coverage, and higher confidence in UI quality." ,
April 2026
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 performance summary for CollaboraOnline/online: Delivered cross-platform build stability fixes and macOS WSD global settings support, with targeted bug fixes that improve reliability, developer experience, and feature readiness for macOS users. Highlights include strengthening cross-platform SIMD builds, enabling macOS WSD configuration, and addressing platform-specific build issues that previously caused failures or undefined symbol errors.
March 2026
3 Commits • 1 Features
Mar 1, 2026March 2026 performance summary for CollaboraOnline/online: Delivered cross-platform build stability fixes and macOS WSD global settings support, with targeted bug fixes that improve reliability, developer experience, and feature readiness for macOS users. Highlights include strengthening cross-platform SIMD builds, enabling macOS WSD configuration, and addressing platform-specific build issues that previously caused failures or undefined symbol errors.
February 2026
7 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for CollaboraOnline/online focusing on delivering flexible build strategies, expanding automated UI testing on macOS, and consolidating code quality improvements to reduce maintenance risk. Key delivery includes a new out-of-tree build strategy for BackstageSVGIcons (declaring prototypes in TypeScript and generating icons directly as JavaScript), expanded UI test coverage for the Coda app and macOS backstage UI, and a Code Quality Refactor to consolidate initialization paths and improve formatting across server and mobile.
7 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for CollaboraOnline/online focusing on delivering flexible build strategies, expanding automated UI testing on macOS, and consolidating code quality improvements to reduce maintenance risk. Key delivery includes a new out-of-tree build strategy for BackstageSVGIcons (declaring prototypes in TypeScript and generating icons directly as JavaScript), expanded UI test coverage for the Coda app and macOS backstage UI, and a Code Quality Refactor to consolidate initialization paths and improve formatting across server and mobile.
February 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for CollaboraOnline/online: Delivered complete Czech localization of the Help Documentation by translating 484 strings via Weblate, improving accessibility and onboarding for Czech-speaking users. The work was captured in commit c42029601ab6613502496a7f53ff660d7eb861b8 ("Translated using Weblate (Czech)"). This strengthens market reach and reduces localization backlog, enhancing overall user experience.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for CollaboraOnline/online: Delivered complete Czech localization of the Help Documentation by translating 484 strings via Weblate, improving accessibility and onboarding for Czech-speaking users. The work was captured in commit c42029601ab6613502496a7f53ff660d7eb861b8 ("Translated using Weblate (Czech)"). This strengthens market reach and reduces localization backlog, enhancing overall user experience.
December 2025
8 Commits • 2 Features
Dec 1, 2025December 2025 performance summary for CollaboraOnline/online: Delivered cross-language document templates, a Backstage-based document creation flow, and several macOS-focused reliability improvements. These changes enhance interoperability, onboarding, and distribution readiness, delivering measurable business value through broader template compatibility, faster feature adoption, and stronger product quality.
8 Commits • 2 Features
Dec 1, 2025December 2025 performance summary for CollaboraOnline/online: Delivered cross-language document templates, a Backstage-based document creation flow, and several macOS-focused reliability improvements. These changes enhance interoperability, onboarding, and distribution readiness, delivering measurable business value through broader template compatibility, faster feature adoption, and stronger product quality.
December 2025
November 2025
35 Commits • 13 Features
Nov 1, 2025November 2025 monthly summary for Collabora Online (CollaboraOnline/online): Focused on stabilizing and enhancing the macOS integration, accelerating release readiness, and polishing user workflows and localization. Key work centred on macOS build reliability, Save/Document workflow improvements, and packaging cleanup, with several UI/UX refinements delivered across translations and welcome screens. The month combined significant technical gains with tangible business value through improved release efficiency, better user experience, and reinforced platform compatibility. Major deliverables include: - macOS Build System Improvements: static libpng linking, updated build instructions, and use of --with-* configure switches for libpng and zstd, plus path validation to reduce misconfigurations. Commits include 135ad92644ea25e009154968b6ae105e9857d4c6; 2bca3b4672c8ef08ef2562557917911aa09a8588; c2a5f2f5810200c9073a3bab05bf7cb1a7294504; f664638115575ddcc8dccee55495fde4eef3f756; 7127963487c4ba24c2974df377dcf6532d314f7d. - macOS Save/Document Workflow: Adds Save As, integrates Save dialog with JavaScript, and improves document write/save reliability to prevent data loss and race conditions. Commits include 3d2db37dce9218051c56f1d4dd7a912d6484b283; 2bf05249cff419d1c4616e53f596854315872d3a; e930a143c0f6595769f5326f03f0802009edd588; 046364690c46deec652350a19ec5668887416c71; 53f947211a23c6222debb557ac09e6abeedb0bb7. - Packaging and Cleanup for Release: Re-sign core libraries only for Release; avoid copying Info.plist to Resources; remove obsolete slideshow code to streamline builds and reduce release overhead. Commits include 3c729d4683ff7f3aac17c4c87f7b58ad87125a25; 086f75789b88c6f8c8558c870c827b7f274aa9db; 945faf2e88be33c5740d0e0933c630c265b0b036. - Localization and UX Polish: Czech translation for Welcome screen; branding made optional; welcome slideshow improvements and UI polish to align with product branding and user expectations. Commits include 41a86814f86c986a5c3d9f2116f41b1d6883fc2f; a59a3eb1e658af9bc3563ddbfb1b6c94850fc33b; c38bc13b53d97e9678af758e48a1a7f887da7cfe. - macOS-specific flows and reliability improvements: added handling for file operations and saving flows (downloadas, file picker interception, newdoc message handling) to improve user experience and reduce edge-case failures. Commits include 04d55226017c9ca90b1f1e1c0146e0d876ff18fb; c6c3ea3dd8a3f8e09643c8743b102945620b3cfa; 2b299ef76515f5fc8f022f15baf761d0a0b88b8c; 04d55226017c9ca90b1f1e1c0146e0d876ff18fb; 728b49fda4de4467ed74f926aa6139308b39dc53 (editable-new docs). Impact and business value: - Reduced release cycle friction and improved release reliability with a streamlined macOS build and packaging pipeline. - Improved end-user experience for macOS users through Save As, file handling reliability, and better welcome/branding UX. - Strengthened localization, branding flexibility, and maintainability with targeted UX polish and translation work. - Demonstrated technical breadth across C++, Xcode integration, JavaScript bridging, and macOS-specific system interactions, underscoring the team’s ability to deliver end-to-end platform improvements.
November 2025
35 Commits • 13 Features
Nov 1, 2025November 2025 monthly summary for Collabora Online (CollaboraOnline/online): Focused on stabilizing and enhancing the macOS integration, accelerating release readiness, and polishing user workflows and localization. Key work centred on macOS build reliability, Save/Document workflow improvements, and packaging cleanup, with several UI/UX refinements delivered across translations and welcome screens. The month combined significant technical gains with tangible business value through improved release efficiency, better user experience, and reinforced platform compatibility. Major deliverables include: - macOS Build System Improvements: static libpng linking, updated build instructions, and use of --with-* configure switches for libpng and zstd, plus path validation to reduce misconfigurations. Commits include 135ad92644ea25e009154968b6ae105e9857d4c6; 2bca3b4672c8ef08ef2562557917911aa09a8588; c2a5f2f5810200c9073a3bab05bf7cb1a7294504; f664638115575ddcc8dccee55495fde4eef3f756; 7127963487c4ba24c2974df377dcf6532d314f7d. - macOS Save/Document Workflow: Adds Save As, integrates Save dialog with JavaScript, and improves document write/save reliability to prevent data loss and race conditions. Commits include 3d2db37dce9218051c56f1d4dd7a912d6484b283; 2bf05249cff419d1c4616e53f596854315872d3a; e930a143c0f6595769f5326f03f0802009edd588; 046364690c46deec652350a19ec5668887416c71; 53f947211a23c6222debb557ac09e6abeedb0bb7. - Packaging and Cleanup for Release: Re-sign core libraries only for Release; avoid copying Info.plist to Resources; remove obsolete slideshow code to streamline builds and reduce release overhead. Commits include 3c729d4683ff7f3aac17c4c87f7b58ad87125a25; 086f75789b88c6f8c8558c870c827b7f274aa9db; 945faf2e88be33c5740d0e0933c630c265b0b036. - Localization and UX Polish: Czech translation for Welcome screen; branding made optional; welcome slideshow improvements and UI polish to align with product branding and user expectations. Commits include 41a86814f86c986a5c3d9f2116f41b1d6883fc2f; a59a3eb1e658af9bc3563ddbfb1b6c94850fc33b; c38bc13b53d97e9678af758e48a1a7f887da7cfe. - macOS-specific flows and reliability improvements: added handling for file operations and saving flows (downloadas, file picker interception, newdoc message handling) to improve user experience and reduce edge-case failures. Commits include 04d55226017c9ca90b1f1e1c0146e0d876ff18fb; c6c3ea3dd8a3f8e09643c8743b102945620b3cfa; 2b299ef76515f5fc8f022f15baf761d0a0b88b8c; 04d55226017c9ca90b1f1e1c0146e0d876ff18fb; 728b49fda4de4467ed74f926aa6139308b39dc53 (editable-new docs). Impact and business value: - Reduced release cycle friction and improved release reliability with a streamlined macOS build and packaging pipeline. - Improved end-user experience for macOS users through Save As, file handling reliability, and better welcome/branding UX. - Strengthened localization, branding flexibility, and maintainability with targeted UX polish and translation work. - Demonstrated technical breadth across C++, Xcode integration, JavaScript bridging, and macOS-specific system interactions, underscoring the team’s ability to deliver end-to-end platform improvements.
October 2025
12 Commits • 2 Features
Oct 1, 2025October 2025 performance for CollaboraOnline/online focused on delivering user-centric reliability improvements and robust macOS packaging/build-system enhancements. Implemented per-document window state persistence and startup Open Panel UX, enabling consistent document-centric workflows and a clear entry point when no documents are open. This also includes improvements to app lifecycle so the application can remain running with no documents and handle New Document creation smoothly. Executed a comprehensive set of macOS build/packaging refinements to support configurable naming, sanitized Info.plist handling, and stricter packaging validation, while integrating build-system updates (dumpWsdState.cpp) to ensure successful linking and release readiness.
12 Commits • 2 Features
Oct 1, 2025October 2025 performance for CollaboraOnline/online focused on delivering user-centric reliability improvements and robust macOS packaging/build-system enhancements. Implemented per-document window state persistence and startup Open Panel UX, enabling consistent document-centric workflows and a clear entry point when no documents are open. This also includes improvements to app lifecycle so the application can remain running with no documents and handle New Document creation smoothly. Executed a comprehensive set of macOS build/packaging refinements to support configurable naming, sanitized Info.plist handling, and stricter packaging validation, while integrating build-system updates (dumpWsdState.cpp) to ensure successful linking and release readiness.
October 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for CollaboraOnline/online. Delivered priority iOS platform enhancements and core stability improvements to boost user experience, reliability, and maintainability across the product. Key features and bug fixes implemented this month are designed to reduce latency, prevent blocking behavior, and offer a more consistent experience in multi-document scenarios.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for CollaboraOnline/online. Delivered priority iOS platform enhancements and core stability improvements to boost user experience, reliability, and maintainability across the product. Key features and bug fixes implemented this month are designed to reduce latency, prevent blocking behavior, and offer a more consistent experience in multi-document scenarios.
August 2025
1 Commits • 1 Features
Aug 1, 2025Month 2025-08: Focused on maintainability and modularity of the logging subsystem in CollaboraOnline/online. Delivered a dedicated modularization of the logging code to enable component-scoped logging and easier testing; groundwork for scalable logging infrastructure across the product. No customer-facing features added this month; primary value is code quality and long-term agility.
1 Commits • 1 Features
Aug 1, 2025Month 2025-08: Focused on maintainability and modularity of the logging subsystem in CollaboraOnline/online. Delivered a dedicated modularization of the logging code to enable component-scoped logging and easier testing; groundwork for scalable logging infrastructure across the product. No customer-facing features added this month; primary value is code quality and long-term agility.
August 2025
July 2025
1 Commits
Jul 1, 2025In July 2025, focused on stabilizing the mobile app build workflow for CollaboraOnline/online by delivering a targeted fix to the MOBILEAPP variable and tightening the output generation. The key delivery was defining MOBILEAPP earlier in the M4 build process to prevent %BROWSER_VIEWPORT% issues in mobile apps, and introducing m4_dnl directives to prevent empty lines in generated output. This work improves mobile build reliability, reduces rendering issues, and enhances developer productivity through clearer, more maintainable build scripts. Commit trace: f6dba5fc8947095189a580b73af41f5c388ec9c5.
July 2025
1 Commits
Jul 1, 2025In July 2025, focused on stabilizing the mobile app build workflow for CollaboraOnline/online by delivering a targeted fix to the MOBILEAPP variable and tightening the output generation. The key delivery was defining MOBILEAPP earlier in the M4 build process to prevent %BROWSER_VIEWPORT% issues in mobile apps, and introducing m4_dnl directives to prevent empty lines in generated output. This work improves mobile build reliability, reduces rendering issues, and enhances developer productivity through clearer, more maintainable build scripts. Commit trace: f6dba5fc8947095189a580b73af41f5c388ec9c5.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focused on stabilizing mobile collaboration and tightening resource management in Collabora Online. Delivered mobile-ready real-time communication improvements and implemented comprehensive resource cleanup on document close, addressing leak risk across multiple close scenarios (window close, File -> Close, WebView). These changes improve reliability for mobile users and reduce crash/leak risk, enabling smoother collaboration and higher user satisfaction.
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focused on stabilizing mobile collaboration and tightening resource management in Collabora Online. Delivered mobile-ready real-time communication improvements and implemented comprehensive resource cleanup on document close, addressing leak risk across multiple close scenarios (window close, File -> Close, WebView). These changes improve reliability for mobile users and reduce crash/leak risk, enabling smoother collaboration and higher user satisfaction.
June 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025: Delivered CodeQL compliance and security hardening for CollaboraOnline/online. Strengthened code quality and security posture through parameter hygiene, file IO validation, and CodeQL clarifications, supported by two focused commits. Achieved improvements in static analysis readiness and maintainability, enabling safer code changes and faster security reviews.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025: Delivered CodeQL compliance and security hardening for CollaboraOnline/online. Strengthened code quality and security posture through parameter hygiene, file IO validation, and CodeQL clarifications, supported by two focused commits. Achieved improvements in static analysis readiness and maintainability, enabling safer code changes and faster security reviews.
April 2025
3 Commits
Apr 1, 2025April 2025 performance summary for CollaboraOnline/online. Focused on reliability, cross-platform compatibility, and maintainability. Delivered three targeted fixes that enhance user experience and build stability: (1) Menubar Event Binding Stability; (2) Compiler Compatibility with clang-19 and --without-ssl; (3) Cross-Platform Mobile Code Segregation. Impact includes more reliable interactive menus, successful builds with newer compilers, and clearer, more robust platform-specific code paths. Demonstrated proficiency in TypeScript event handling, C++ build configurations, and cross-platform design patterns, paving the way for streamlined future enhancements.
3 Commits
Apr 1, 2025April 2025 performance summary for CollaboraOnline/online. Focused on reliability, cross-platform compatibility, and maintainability. Delivered three targeted fixes that enhance user experience and build stability: (1) Menubar Event Binding Stability; (2) Compiler Compatibility with clang-19 and --without-ssl; (3) Cross-Platform Mobile Code Segregation. Impact includes more reliable interactive menus, successful builds with newer compilers, and clearer, more robust platform-specific code paths. Demonstrated proficiency in TypeScript event handling, C++ build configurations, and cross-platform design patterns, paving the way for streamlined future enhancements.
April 2025
March 2025
6 Commits • 2 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on key features delivered, business value, and technical accomplishments for CollaboraOnline/online. The month centered on TypeScript modernization and developer-experience improvements across the core UI, with targeted migrations and enhanced typing that reduce runtime risk and speed up development.
March 2025
6 Commits • 2 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on key features delivered, business value, and technical accomplishments for CollaboraOnline/online. The month centered on TypeScript modernization and developer-experience improvements across the core UI, with targeted migrations and enhanced typing that reduce runtime risk and speed up development.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025: Implemented Reliability and Diagnostics Enhancements and Platform Compatibility/Build System Improvements for CollaboraOnline/online. These changes improve runtime stability and observability in multi-threaded environments, reduce configuration drift, and streamline Linux builds. Result: clearer error reporting, safer thread handling, and easier maintenance across deployments.
4 Commits • 2 Features
Feb 1, 2025February 2025: Implemented Reliability and Diagnostics Enhancements and Platform Compatibility/Build System Improvements for CollaboraOnline/online. These changes improve runtime stability and observability in multi-threaded environments, reduce configuration drift, and streamline Linux builds. Result: clearer error reporting, safer thread handling, and easier maintenance across deployments.
February 2025
January 2025
5 Commits • 2 Features
Jan 1, 2025January 2025 (CollaboraOnline/online) focused on delivering cross-platform portability and configuration standardization, tightening networking reliability, and correcting a critical FileServer boolean handling issue. These efforts reduce platform-specific build issues, enhance troubleshooting, and stabilize the WOPI debug path for smoother deployments and user experiences.
January 2025
5 Commits • 2 Features
Jan 1, 2025January 2025 (CollaboraOnline/online) focused on delivering cross-platform portability and configuration standardization, tightening networking reliability, and correcting a critical FileServer boolean handling issue. These efforts reduce platform-specific build issues, enhance troubleshooting, and stabilize the WOPI debug path for smoother deployments and user experiences.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for CollaboraOnline/online focusing on cross-platform portability improvements. Implemented memrchr support detection via the build system and conditional inclusion in Util.hpp, enabling correct behavior across platforms and reducing build-time issues.
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for CollaboraOnline/online focusing on cross-platform portability improvements. Implemented memrchr support detection via the build system and conditional inclusion in Util.hpp, enabling correct behavior across platforms and reducing build-time issues.
December 2024
November 2024
7 Commits • 3 Features
Nov 1, 20242024-11 Monthly summary for CollaboraOnline/online focusing on delivering robust macOS integration, cross-platform build reliability, and improved error handling. The work emphasized stability, developer productivity, and scalable localization/config bootstrapping across platforms.
November 2024
7 Commits • 3 Features
Nov 1, 20242024-11 Monthly summary for CollaboraOnline/online focusing on delivering robust macOS integration, cross-platform build reliability, and improved error handling. The work emphasized stability, developer productivity, and scalable localization/config bootstrapping across platforms.
October 2024
3 Commits • 2 Features
Oct 1, 2024October 2024 monthly summary for Collabora Online (repo CollaboraOnline/online): Delivered foundational macOS CODA scaffolding and a WebView-based UI bridge with cross-language bindings to enable future cross-platform parity and faster delivery of macOS features. The work focused on establishing build readiness, cross-language integration (JS-Swift, C++ to Swift), and a proof-of-concept for COOLWSD-enabled document loading, setting the stage for subsequent feature work and CI/CD readiness.
3 Commits • 2 Features
Oct 1, 2024October 2024 monthly summary for Collabora Online (repo CollaboraOnline/online): Delivered foundational macOS CODA scaffolding and a WebView-based UI bridge with cross-language bindings to enable future cross-platform parity and faster delivery of macOS features. The work focused on establishing build readiness, cross-language integration (JS-Swift, C++ to Swift), and a proof-of-concept for COOLWSD-enabled document loading, setting the stage for subsequent feature work and CI/CD readiness.
October 2024
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Quality Metrics
Correctness91.8%
Maintainability87.4%
Architecture86.0%
Performance85.0%
AI Usage22.0%
Skills & Technologies
Programming Languages
CC++CSSHTMLJSONJavaScriptM4MakefileMarkdownObjective-C
Technical Skills
Accessibility ImplementationApp DevelopmentAppKitAutoconfBackend DevelopmentBuild AutomationBuild ConfigurationBuild SystemBuild System ConfigurationBuild SystemsBuild automationC ProgrammingC programmingC++C++ Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline