tutao/tutanota
Feb 2025 – Feb 2026
10 Months active
Languages Used
JavaJavaScriptKotlinSwiftTypeScriptCSSRust
Technical Skills
Android DevelopmentComponent DevelopmentCross-platform DevelopmentCryptographyFrontend DevelopmentKey Management
mab
PROFILE
Mab
Over ten months, mab@tutao.de delivered robust features and improvements for the tutao/tutanota repository, focusing on secure key verification, Drive file management, and cross-platform user experience. They engineered end-to-end workflows for public key verification, integrating QR code scanning and TOFU-based validation using TypeScript and Kotlin. Their work included backend and frontend enhancements, such as Drive upload/download progress tracking, UI/UX refinements, and accessibility improvements for Android and iOS. By simplifying APIs, strengthening error handling, and maintaining rigorous localization, mab@tutao.de improved security, reliability, and maintainability. The depth of their contributions addressed both technical complexity and user-centric requirements.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
61Total
Bugs
5
Commits
61
Features
25
Lines of code
45,680
Activity Months10
Work History
February 2026
5 Commits • 4 Features
Feb 1, 2026February 2026 (tutao/tutanota) — Delivered security, reliability, and UX improvements, including Drive data transfer enhancements, expanded transfer queue visibility, and folder operation safeguards, along with version/dependency updates. No high-severity bugs reported this month. Impact: improved data integrity and security for Drive operations, enhanced user feedback during uploads, safer folder moves, and maintained maintainability through up-to-date dependencies. Technologies demonstrated: key management, UI state management, input validation for file operations, and project maintenance through versioning.
5 Commits • 4 Features
Feb 1, 2026February 2026 (tutao/tutanota) — Delivered security, reliability, and UX improvements, including Drive data transfer enhancements, expanded transfer queue visibility, and folder operation safeguards, along with version/dependency updates. No high-severity bugs reported this month. Impact: improved data integrity and security for Drive operations, enhanced user feedback during uploads, safer folder moves, and maintained maintainability through up-to-date dependencies. Technologies demonstrated: key management, UI state management, input validation for file operations, and project maintenance through versioning.
February 2026
January 2026
14 Commits • 6 Features
Jan 1, 2026January 2026 (2026-01) monthly summary for tutao/tutanota: Delivered cross-platform download progress UI, enhanced Drive features, and targeted UI polish to improve user experience on mobile. Fixed a navigation bug in ListModel and completed key engineering refactors to improve maintainability. Localized German placeholders and bumped dependencies to keep the codebase current. Overall, these changes deliver measurable business value by reducing user wait times, improving accessibility, and ensuring a more robust mobile experience.
January 2026
14 Commits • 6 Features
Jan 1, 2026January 2026 (2026-01) monthly summary for tutao/tutanota: Delivered cross-platform download progress UI, enhanced Drive features, and targeted UI polish to improve user experience on mobile. Fixed a navigation bug in ListModel and completed key engineering refactors to improve maintainability. Localized German placeholders and bumped dependencies to keep the codebase current. Overall, these changes deliver measurable business value by reducing user wait times, improving accessibility, and ensuring a more robust mobile experience.
December 2025
3 Commits • 2 Features
Dec 1, 2025December 2025 – tutao/tutanota: Delivered core UX and functionality improvements for file transfers and Drive navigation, reinforcing reliability, speed, and user efficiency. Key features introduced include Upload and Download Progress Tracking via an UploadProgressController with updated interfaces to surface real-time progress during uploads and downloads. Drive UX Enhancements delivered QuickActions for navigation, folder creation, and file uploads, along with breadcrumb-based drag-and-drop interactions to streamline drive navigation and file management. These changes reduce user friction for large transfers, shorten task completion times, and improve overall satisfaction while lowering support queries. Tech depth includes progress-tracking architecture, frontend UI updates, and drag-and-drop/breadcrumb navigation patterns, demonstrated across commits by multiple contributors.
3 Commits • 2 Features
Dec 1, 2025December 2025 – tutao/tutanota: Delivered core UX and functionality improvements for file transfers and Drive navigation, reinforcing reliability, speed, and user efficiency. Key features introduced include Upload and Download Progress Tracking via an UploadProgressController with updated interfaces to surface real-time progress during uploads and downloads. Drive UX Enhancements delivered QuickActions for navigation, folder creation, and file uploads, along with breadcrumb-based drag-and-drop interactions to streamline drive navigation and file management. These changes reduce user friction for large transfers, shorten task completion times, and improve overall satisfaction while lowering support queries. Tech depth includes progress-tracking architecture, frontend UI updates, and drag-and-drop/breadcrumb navigation patterns, demonstrated across commits by multiple contributors.
December 2025
September 2025
1 Commits • 1 Features
Sep 1, 2025In September 2025, delivered Drive Web File Management for tutao/tutanota, introducing a web-based Drive feature that enables upload, delete, and folder creation to boost user productivity and data organization. This end-to-end feature was implemented in a single co-authored commit (ff0f358799e658d0d7a40150b4b18ae7260b9101) by hec and ivk. No major bugs fixed this month. Impact: strengthens the core web experience, reduces manual file-management friction, and supports scalable data organization. Technologies/skills demonstrated: web Drive architecture, collaborative development, Git-based version control, and feature delivery lifecycle.
September 2025
1 Commits • 1 Features
Sep 1, 2025In September 2025, delivered Drive Web File Management for tutao/tutanota, introducing a web-based Drive feature that enables upload, delete, and folder creation to boost user productivity and data organization. This end-to-end feature was implemented in a single co-authored commit (ff0f358799e658d0d7a40150b4b18ae7260b9101) by hec and ivk. No major bugs fixed this month. Impact: strengthens the core web experience, reduces manual file-management friction, and supports scalable data organization. Technologies/skills demonstrated: web Drive architecture, collaborative development, Git-based version control, and feature delivery lifecycle.
August 2025
11 Commits • 2 Features
Aug 1, 2025Concise summary for 2025-08: In August 2025, shipped security- and UI-focused enhancements for tutao/tutanota, refreshed icons and visuals, and stabilized offline data migration. The work enhances key verification UX to prevent forgery, fixes HTML rendering and layout regressions, and aligns offline storage versioning with clearer logs. A TutanotaModel version bump (v92) was performed to support updated entity facade data and tests, delivering a stronger foundation for reliability and future features. Business value: improved security, more consistent user experience, and smoother offline upgrades.
11 Commits • 2 Features
Aug 1, 2025Concise summary for 2025-08: In August 2025, shipped security- and UI-focused enhancements for tutao/tutanota, refreshed icons and visuals, and stabilized offline data migration. The work enhances key verification UX to prevent forgery, fixes HTML rendering and layout regressions, and aligns offline storage versioning with clearer logs. A TutanotaModel version bump (v92) was performed to support updated entity facade data and tests, delivering a stronger foundation for reliability and future features. Business value: improved security, more consistent user experience, and smoother offline upgrades.
August 2025
July 2025
11 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for tutao/tutanota focusing on delivering robust, user-centric key verification improvements, security hardening for identity trust databases, and UX/design polish across the repo. The work emphasizes business value: reduced trust frictions, higher reliability of verification flows, and improved security posture with clearer user feedback and localization.
July 2025
11 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for tutao/tutanota focusing on delivering robust, user-centric key verification improvements, security hardening for identity trust databases, and UX/design polish across the repo. The work emphasizes business value: reduced trust frictions, higher reliability of verification flows, and improved security posture with clearer user feedback and localization.
May 2025
3 Commits • 2 Features
May 1, 2025May 2025 monthly summary for tutao/tutanota: Focused on strengthening key management and simplifying recipient resolution to deliver measurable security and developer efficiency improvements.
3 Commits • 2 Features
May 1, 2025May 2025 monthly summary for tutao/tutanota: Focused on strengthening key management and simplifying recipient resolution to deliver measurable security and developer efficiency improvements.
May 2025
April 2025
1 Commits
Apr 1, 2025April 2025 monthly summary focusing on calendar sharing resilience in the tutao/tutanota project. Implemented targeted error handling for KeyVerificationMismatchError in the Calendar Sharing flow, updating the error key to deliver a more specific, user-friendly message and catching/re-throwing to provide clearer feedback when recipient key verification fails. The change improves reliability and reduces user confusion in calendar sharing scenarios.
April 2025
1 Commits
Apr 1, 2025April 2025 monthly summary focusing on calendar sharing resilience in the tutao/tutanota project. Implemented targeted error handling for KeyVerificationMismatchError in the Calendar Sharing flow, updating the error key to deliver a more specific, user-friendly message and catching/re-throwing to provide clearer feedback when recipient key verification fails. The change improves reliability and reduces user confusion in calendar sharing scenarios.
March 2025
10 Commits • 5 Features
Mar 1, 2025March 2025: Implemented a comprehensive Key Verification workflow, enhanced QR code scanning, UI polish, localization, and calendar integration in tutao/tutanota. The changes focus on reliability, performance, and business value through instrumentation, feature flags, and cross-app consistency across user flows.
10 Commits • 5 Features
Mar 1, 2025March 2025: Implemented a comprehensive Key Verification workflow, enhanced QR code scanning, UI polish, localization, and calendar integration in tutao/tutanota. The changes focus on reliability, performance, and business value through instrumentation, feature flags, and cross-app consistency across user flows.
March 2025
February 2025
2 Commits • 1 Features
Feb 1, 2025Month: 2025-02 — Tutao/Tutanota: Key Verification feature delivered across mobile, UI improvements, and key-management enhancements. No major bugs fixed were reported in this dataset.
February 2025
2 Commits • 1 Features
Feb 1, 2025Month: 2025-02 — Tutao/Tutanota: Key Verification feature delivered across mobile, UI improvements, and key-management enhancements. No major bugs fixed were reported in this dataset.
Activity
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Quality Metrics
Correctness91.2%
Maintainability88.8%
Architecture86.8%
Performance85.0%
AI Usage23.2%
Skills & Technologies
Programming Languages
CSSJavaJavaScriptKotlinRustSwiftTypeScript
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI developmentAndroidAndroid DevelopmentAndroid developmentAsynchronous ProgrammingBackend DevelopmentBuild ConfigurationCombineComponent DevelopmentComponent StylingCoroutinesCross-platform Development
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