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theocrsb

PROFILE

Theocrsb

Theo Crosbie developed and maintained front-end features for the OpenRailAssociation/osrd repository, focusing on operational planning, train scheduling, and UI consistency. He engineered exception-aware train path visualization, robust data-loading flows, and subcategory support for train classifications, leveraging React, TypeScript, and SCSS. His work included refactoring core components, implementing context-driven state management, and enhancing end-to-end testing with Playwright. By centralizing theming and improving modal workflows, Theo addressed maintainability and reliability, reducing edge-case bugs and operator errors. His technical approach emphasized clean code, backward compatibility, and scalable design, resulting in a more cohesive, performant, and user-friendly operational planning platform.

Overall Statistics

Feature vs Bugs

84%Features

Repository Contributions

91Total
Bugs
7
Commits
91
Features
37
Lines of code
4,631
Activity Months12

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

Month 2025-10 – OpenRailAssociation/osrd: Implemented exception-aware train path coloring to improve visual accuracy and debugging for exception scenarios. Key changes: getPathStyle now uses exception.rolling_stock_category for path colors when available, with a safe fallback to item.category to ensure consistent visuals. This delivers clearer path representations for exceptions, reducing troubleshooting time and supporting better operator decision-making. The work aligns with ongoing UX improvements and code quality goals.

September 2025

12 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary for OpenRailAssociation/osrd focused on delivering stability, performance, and UI polish across operational planning features. Key outcomes include robust data-loading and modal flows for Operational Studies, and a cohesive, maintainable UI experience across editors and interfaces. The work emphasizes business value through more reliable planning data, faster interactions, and consistent user experience, enabling smoother operations and quicker iteration cycles for front-end features.

August 2025

14 Commits • 2 Features

Aug 1, 2025

August 2025 performance summary for OpenRailAssociation/osrd: Delivered major enhancements to subcategory support and theming, while tidying codebase and preserving backward compatibility. Key outcomes include: SubCategoryContext enabling end-to-end subcategory handling across train classifications, timetable filters, OSRD/NGE conversion, and imports; centralized train category color theming and UI styling with subcategory colors applied in conflict lists; code cleanup removing obsolete front-end TODOs; backward compatibility for imports using the old category format and subcategory-aware imports/exports for pacedtrains and train schedules. This work improves data accuracy, UI consistency, faster data processing, and reduces manual adjustments for operators. Technologies/skills demonstrated: React/TypeScript front-end work, Context API, SCSS/theming, UI data-flow updates, and backward compatibility.

July 2025

5 Commits • 2 Features

Jul 1, 2025

July 2025 monthly summary for OpenRailAssociation/osrd. Focused on delivering reliability and maintainability improvements around paced-train features, with end-to-end testing coverage and a core refactor to encapsulate paced-train logic. The changes reduce test flakiness, accelerate feedback in CI, and prepare the codebase for faster-paced development of pacing scenarios.

June 2025

7 Commits • 5 Features

Jun 1, 2025

June 2025 (OpenRailAssociation/osrd) focused on UI consistency, reliability, and tooling hygiene. Delivered unified ConfirmModal behavior across modals, introduced a Reset All Exceptions workflow for paced trains with confirmation, and enhanced visibility of conflicts and occurrences. Additional improvements included LMR page header notifications with location details and overall QA/tooling hygiene updates (test naming and SVGO config). These efforts improved user experience, reduced edge-case bugs, and strengthened deployment stability, contributing to faster issue resolution and higher developer velocity.

April 2025

7 Commits • 3 Features

Apr 1, 2025

April 2025 — OpenRailAssociation/osrd: Focused frontend work delivering targeted UI/UX enhancements and stability improvements for paced train management and rolling stock tooling, resulting in clearer workflows and higher operator reliability.

March 2025

3 Commits • 3 Features

Mar 1, 2025

March 2025 performance summary for OpenRailAssociation projects. Delivered cross-repo enhancements with measurable improvements in data fetch efficiency, UI polish, and assets needed for user impersonation workflows. Focused on business value, maintainability, and scalable design.

February 2025

8 Commits • 5 Features

Feb 1, 2025

February 2025 summary for OpenRailAssociation projects: Delivered reliability and UX enhancements across osrd and osrd-ui, with key features, targeted bug fixes, and improvements in data visualization and content rendering. The work focused on reducing operator toil, improving visualization accuracy, and enabling flexible content composition for richer presentations and analyses.

January 2025

6 Commits • 3 Features

Jan 1, 2025

Concise monthly summary for 2025-01 focused on OpenRailAssociation/osrd. Delivered front-end enhancements to train schedule visualization and improved readiness checks for simulation, along with data validation and UI library upgrades to strengthen reliability and UX. Key improvements reduced user error, improved performance of rendering and simulation workflow, and reinforced data integrity across the stack.

December 2024

7 Commits • 2 Features

Dec 1, 2024

December 2024 — OpenRailAssociation/osrd: Frontend UX improvements and reliability fixes. Delivered key features enhancing map usability and popup interactions, fixed time representation, and improved train list reliability. Result: better user experience, more accurate data presentation, and a simpler codebase for maintainability and faster future iterations.

November 2024

16 Commits • 6 Features

Nov 1, 2024

November 2024 Highlights across OpenRailAssociation/osrd and osrd-ui focused on delivering UX improvements, stabilizing visuals, and upgrading frontend dependencies to drive faster feature delivery and lower maintenance cost. The work combines user-facing map and UI refinements with performance optimizations in pathfinding, resulting in smoother operator workflows and more reliable displays. Tech debt reduction through styling standardization and library updates supports future velocity and design-consistency across products.

October 2024

5 Commits • 3 Features

Oct 1, 2024

October 2024: Delivered cross-repo front-end improvements in OpenRailAssociation/osrd and osrd-ui focused on reliability, usability, and visual consistency. Key features include Timetable UI polish with display fixes, and display of start/destination markers on simulation results. A critical font asset relocation stabilized font loading in CSS. In osrd-ui, Manchette theming was aligned to design mocks. These changes enhance operator usability, reduce font-related rendering issues, and deliver a cohesive UI aligned with design standards.

Activity

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Quality Metrics

Correctness87.8%
Maintainability88.2%
Architecture82.2%
Performance86.8%
AI Usage20.6%

Skills & Technologies

Programming Languages

CSSHTMLJSXJavaScriptReactRustSCSSSVGTypeScriptYAML

Technical Skills

API DesignAPI IntegrationBackend DevelopmentCSSCode CleanupConfiguration ManagementContext APIDependency ManagementEnd-to-End TestingFront End DevelopmentFront-end DevelopmentFrontend DevelopmentIconographyJavaScriptMap Integration

Repositories Contributed To

2 repos

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

OpenRailAssociation/osrd

Oct 2024 Oct 2025
12 Months active

Languages Used

CSSJavaScriptSCSSTypeScriptRustYAMLJSX

Technical Skills

CSSFront End DevelopmentFront-end DevelopmentMap IntegrationReactTesting

OpenRailAssociation/osrd-ui

Oct 2024 Mar 2025
4 Months active

Languages Used

CSSTypeScriptJavaScriptSVGReactHTML

Technical Skills

Front-end DevelopmentUI DevelopmentReactUI ComponentsUI/UX DesignFrontend Development

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