OpenRailAssociation/osrd
Nov 2024 – Jun 2026
20 Months active
Languages Used
RustSQLTypeScriptYAMLPythonJavaGorust
Technical Skills
API DesignAPI IntegrationBackend DevelopmentCode ConsistencyDatabase DesignLogging
hamz2a
PROFILE
Hamz2a
Over 20 months, contributed to the OpenRailAssociation/osrd repository by designing and evolving robust backend APIs, data models, and automated schema workflows for rail scheduling and simulation. Leveraged Rust, Python, and TypeScript to deliver features such as centralized OpenAPI schema generation, advanced error handling, and efficient caching strategies. Refactored core modules for maintainability, unified data serialization, and improved test infrastructure with end-to-end scenarios and mocking. Enhanced system reliability through database migrations, schema validation, and CI/CD automation. The work enabled faster feature delivery, reduced integration friction, and ensured alignment between backend, frontend, and client code across a complex, evolving codebase.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
110Total
Bugs
5
Commits
110
Features
39
Lines of code
94,172
Activity Months20
Your Network
93 peopleShared Repositories
93
Achraf MohyeddineMember
acquigioMember
adityabhatkar23Member
Alex RollandMember
@0304407cMember
Alexis JacomyMember
alexandrergjMember
Alice K.Member
Alice KhoudliMember
Work History
June 2026
6 Commits • 3 Features
Jun 1, 2026June 2026 monthly summary for OpenRailAssociation/osrd: Focused on automating schema generation, reducing downstream maintenance, and upgrading tooling to improve quality and velocity. Key outcomes include exposing the RailJSON version default in the OpenAPI schema with a Rust helper, reorganizing auto-schema generation to a single source of truth, and upgrading testing/tools to maintain compatibility. This reduced manual configuration, improved downstream consistency, and streamlined CI/build for fully automated generation across languages.
6 Commits • 3 Features
Jun 1, 2026June 2026 monthly summary for OpenRailAssociation/osrd: Focused on automating schema generation, reducing downstream maintenance, and upgrading tooling to improve quality and velocity. Key outcomes include exposing the RailJSON version default in the OpenAPI schema with a Rust helper, reorganizing auto-schema generation to a single source of truth, and upgrading testing/tools to maintain compatibility. This reduced manual configuration, improved downstream consistency, and streamlined CI/build for fully automated generation across languages.
June 2026
May 2026
8 Commits • 1 Features
May 1, 2026May 2026 monthly summary for OpenRailAssociation/osrd: Delivered a fully automated, centralized OpenAPI schema workflow and migrated client model generation to an auto-generated schema library, reducing manual maintenance and drift. Key changes include introducing the osrd_schemas_auto module to host generated Python models, refactoring the codebase to consume these generated schemas, and removing the legacy pre-processor and handwritten RaiMI client while keeping a single source of truth for the OpenAPI spec in railway_manager_interface. Key features delivered: - Auto-generated OpenAPI schemas workflow with centralized management and end-to-end generation pipeline accessed via datamodel-codegen. - New osrd_schemas_auto package housing generated models; removal of generate_railway_interface_management_models.py and related handwritten client. - railjson_generator updated to import from osrd_schemas_auto when a matching class exists; otherwise falls back to existing sources. - CI updated to validate and diffs the osrd_schemas_auto models and route checks through check_osrd_schemas_auto; codeowners entry added for the new module and repo structure. - Reorganized schema definitions for maintainability and CI alignment; explicit titles added to error contexts and naming adjustments to avoid collisions. Major bugs fixed: - Resolved names and collision issues in generated schemas (e.g., CoreFoo instead of dot-prefixed names, removal of numeric suffixes like Boundary1, TimingData1). - Eliminated naming collisions and ambiguous contexts by adding explicit titles and reorganizing inline vs named schemas. - Consolidated OpenAPI spec in railway_manager_interface; removed duplicate copies to prevent drift. Overall impact and accomplishments: - Significantly reduced maintenance burden and time-to-consume OpenAPI changes; faster, safer API model updates with a single source of truth. - Improved reliability of client codegen, reduced risk of CI breakages due to schema/name collisions, and easier onboarding for new contributors. - Strengthened CI/CD with dedicated validation for generated schemas and clear ownership for the new auto-generated schemas module. Technologies/skills demonstrated: - OpenAPI, datamodel-codegen, Python (Pydantic models), code generation pipelines, module packaging, CI/CD automation, naming hygiene, source-of-truth consolidation, multi-repo coordination.
May 2026
8 Commits • 1 Features
May 1, 2026May 2026 monthly summary for OpenRailAssociation/osrd: Delivered a fully automated, centralized OpenAPI schema workflow and migrated client model generation to an auto-generated schema library, reducing manual maintenance and drift. Key changes include introducing the osrd_schemas_auto module to host generated Python models, refactoring the codebase to consume these generated schemas, and removing the legacy pre-processor and handwritten RaiMI client while keeping a single source of truth for the OpenAPI spec in railway_manager_interface. Key features delivered: - Auto-generated OpenAPI schemas workflow with centralized management and end-to-end generation pipeline accessed via datamodel-codegen. - New osrd_schemas_auto package housing generated models; removal of generate_railway_interface_management_models.py and related handwritten client. - railjson_generator updated to import from osrd_schemas_auto when a matching class exists; otherwise falls back to existing sources. - CI updated to validate and diffs the osrd_schemas_auto models and route checks through check_osrd_schemas_auto; codeowners entry added for the new module and repo structure. - Reorganized schema definitions for maintainability and CI alignment; explicit titles added to error contexts and naming adjustments to avoid collisions. Major bugs fixed: - Resolved names and collision issues in generated schemas (e.g., CoreFoo instead of dot-prefixed names, removal of numeric suffixes like Boundary1, TimingData1). - Eliminated naming collisions and ambiguous contexts by adding explicit titles and reorganizing inline vs named schemas. - Consolidated OpenAPI spec in railway_manager_interface; removed duplicate copies to prevent drift. Overall impact and accomplishments: - Significantly reduced maintenance burden and time-to-consume OpenAPI changes; faster, safer API model updates with a single source of truth. - Improved reliability of client codegen, reduced risk of CI breakages due to schema/name collisions, and easier onboarding for new contributors. - Strengthened CI/CD with dedicated validation for generated schemas and clear ownership for the new auto-generated schemas module. Technologies/skills demonstrated: - OpenAPI, datamodel-codegen, Python (Pydantic models), code generation pipelines, module packaging, CI/CD automation, naming hygiene, source-of-truth consolidation, multi-repo coordination.
April 2026
1 Commits • 1 Features
Apr 1, 2026In April 2026, delivered a reliability and clarity upgrade to the OpenRailAssociation/osrd API surface by implementing a robust OpenAPI variant title uniqueness validation. The solution enforces unique titles for all OpenAPI variants during generation, patches external schemas in build_openapi(), and uses a fork of utoipa that supports #[schema(title_variants)]. A strict validation step panics on missing or duplicate titles to prevent regressions, ensuring docs remain accurate and consistent for client integrations and internal tooling.
1 Commits • 1 Features
Apr 1, 2026In April 2026, delivered a reliability and clarity upgrade to the OpenRailAssociation/osrd API surface by implementing a robust OpenAPI variant title uniqueness validation. The solution enforces unique titles for all OpenAPI variants during generation, patches external schemas in build_openapi(), and uses a fork of utoipa that supports #[schema(title_variants)]. A strict validation step panics on missing or duplicate titles to prevent regressions, ensuring docs remain accurate and consistent for client integrations and internal tooling.
April 2026
March 2026
6 Commits • 2 Features
Mar 1, 2026March 2026 performance summary for OpenRailAssociation/osrd: Delivered key backend and frontend improvements to strengthen track occupancy robustness and train scheduling, plus a frontend identification refactor to simplify integration. Implemented support for unknown operational points, simulation-less scenarios, fallback arrival times, and tracking for non-declared path points, complemented by an expanded automated test suite validating these behaviors. The changes deliver more robust scheduling, improved data consistency, and better alignment between backend data models and frontend usage.
March 2026
6 Commits • 2 Features
Mar 1, 2026March 2026 performance summary for OpenRailAssociation/osrd: Delivered key backend and frontend improvements to strengthen track occupancy robustness and train scheduling, plus a frontend identification refactor to simplify integration. Implemented support for unknown operational points, simulation-less scenarios, fallback arrival times, and tracking for non-declared path points, complemented by an expanded automated test suite validating these behaviors. The changes deliver more robust scheduling, improved data consistency, and better alignment between backend data models and frontend usage.
February 2026
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for OpenRailAssociation/osrd: API enhancements and data model clarity. Delivered Track Occupancy Endpoint Enhancements with support for multiple operational point reference types (id, trigram, uic); refined error handling; and a typed enum response, with frontend alignment. Completed a global data model refactor to rename OccurrenceId to train_schedule_id across the codebase, improving clarity and consistency. Implemented robust handling for unknown operational points by returning an optional value and deriving results from the train schedule when not found, and removed the obsolete error variant. These changes improve API flexibility, data semantics, and reliability for downstream integrations.
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for OpenRailAssociation/osrd: API enhancements and data model clarity. Delivered Track Occupancy Endpoint Enhancements with support for multiple operational point reference types (id, trigram, uic); refined error handling; and a typed enum response, with frontend alignment. Completed a global data model refactor to rename OccurrenceId to train_schedule_id across the codebase, improving clarity and consistency. Implemented robust handling for unknown operational points by returning an optional value and deriving results from the train schedule when not found, and removed the obsolete error variant. These changes improve API flexibility, data semantics, and reliability for downstream integrations.
February 2026
January 2026
5 Commits • 2 Features
Jan 1, 2026January 2026 (2026-01) highlights for OpenRailAssociation/osrd: Focused feature delivery and test infrastructure improvements that deliver business value with clearer operational context and maintainable code. Major bugs fixed are not part of this month’s scope; instead, API simplifications and refactors reduce potential bug surfaces by unifying payloads and filtering logic. Overall impact: improved API clarity, stronger frontend-backend alignment, and more maintainable tests. Technologies/skills demonstrated: API design and refactor, OpenAPI alignment, backend/frontend coordination, and test helper utilities.
January 2026
5 Commits • 2 Features
Jan 1, 2026January 2026 (2026-01) highlights for OpenRailAssociation/osrd: Focused feature delivery and test infrastructure improvements that deliver business value with clearer operational context and maintainable code. Major bugs fixed are not part of this month’s scope; instead, API simplifications and refactors reduce potential bug surfaces by unifying payloads and filtering logic. Overall impact: improved API clarity, stronger frontend-backend alignment, and more maintainable tests. Technologies/skills demonstrated: API design and refactor, OpenAPI alignment, backend/frontend coordination, and test helper utilities.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 performance highlights for OpenRailAssociation/osrd: Implemented a data model enhancement to capture local track identification by adding a new field local_track_name to OperationalPointPart. The change improves data fidelity for operational planning and interoperability with local rail segments. Verified via a committed change (88bf3715df153e0651619b703361a92efab11e40) signed-off by hamz2a.
1 Commits • 1 Features
Dec 1, 2025December 2025 performance highlights for OpenRailAssociation/osrd: Implemented a data model enhancement to capture local track identification by adding a new field local_track_name to OperationalPointPart. The change improves data fidelity for operational planning and interoperability with local rail segments. Verified via a committed change (88bf3715df153e0651619b703361a92efab11e40) signed-off by hamz2a.
December 2025
November 2025
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly summary for OpenRailAssociation/osrd focusing on delivering features, stabilizing core caching pathways, and improving testability to support frontend schedules and scalable queries.
November 2025
4 Commits • 3 Features
Nov 1, 2025November 2025 monthly summary for OpenRailAssociation/osrd focusing on delivering features, stabilizing core caching pathways, and improving testability to support frontend schedules and scalable queries.
October 2025
3 Commits • 2 Features
Oct 1, 2025In October 2025, delivered two API refinement features for the OpenRailAssociation/osrd repository, with a focus on clarity, extensibility, and paced-train analytics. The work improves client-facing semantics, API observability, and maintainability, setting a foundation for reliable capacity planning and faster feature iteration.
3 Commits • 2 Features
Oct 1, 2025In October 2025, delivered two API refinement features for the OpenRailAssociation/osrd repository, with a focus on clarity, extensibility, and paced-train analytics. The work improves client-facing semantics, API observability, and maintainability, setting a foundation for reliable capacity planning and faster feature iteration.
October 2025
September 2025
13 Commits • 2 Features
Sep 1, 2025September 2025 performance summary for OpenRailAssociation/osrd: Delivered targeted codebase modernization in the OpenRailAssociation/osrd repository and a search UX improvement for Similar Trains. The refactor standardizes error handling, relocates critical enums for maintainability, and introduces explicit database-related error types, reducing error propagation complexity. The Similar Trains enhancement makes rolling stock filtering optional and eliminates segment-merge complexity, improving search flexibility and response simplicity. These changes reduce maintenance burden, improve reliability, and demonstrate advanced Rust engineering practices (error handling, modularization, and API simplification).
September 2025
13 Commits • 2 Features
Sep 1, 2025September 2025 performance summary for OpenRailAssociation/osrd: Delivered targeted codebase modernization in the OpenRailAssociation/osrd repository and a search UX improvement for Similar Trains. The refactor standardizes error handling, relocates critical enums for maintainability, and introduces explicit database-related error types, reducing error propagation complexity. The Similar Trains enhancement makes rolling stock filtering optional and eliminates segment-merge complexity, improving search flexibility and response simplicity. These changes reduce maintenance burden, improve reliability, and demonstrate advanced Rust engineering practices (error handling, modularization, and API simplification).
August 2025
9 Commits • 1 Features
Aug 1, 2025Month: 2025-08 - OpenRailAssociation/osrd: Delivered enhancements to the editoast component and reinforced train schedule data integrity. Key outcomes include deterministic search with ID-based identification for similar trains, support for no-similar-train scenarios, and API/structure refinements. Implemented integrity fixes to train schedule categorization to ensure consistent state when updating schedules and when category is None. Documentation updates accompany code changes. Overall, these changes improve reliability, traceability, and user experience when composing and searching train schedules, delivering measurable business value in scheduling accuracy and maintainability.
9 Commits • 1 Features
Aug 1, 2025Month: 2025-08 - OpenRailAssociation/osrd: Delivered enhancements to the editoast component and reinforced train schedule data integrity. Key outcomes include deterministic search with ID-based identification for similar trains, support for no-similar-train scenarios, and API/structure refinements. Implemented integrity fixes to train schedule categorization to ensure consistent state when updating schedules and when category is None. Documentation updates accompany code changes. Overall, these changes improve reliability, traceability, and user experience when composing and searching train schedules, delivering measurable business value in scheduling accuracy and maintainability.
August 2025
July 2025
6 Commits • 1 Features
Jul 1, 2025July 2025 – Delivered a comprehensive testing uplift for the OpenRailAssociation/osrd project, centering on the Similar Trains endpoint. The work consolidated testing improvements into a robust infrastructure with new scenarios (no matches, compound routes, prioritization), test data builders, and enhanced mocking. Updated the Graph and similar_trains view to improve testability and data integrity in pathfinding and timetable tests. In addition to feature work, the month emphasized stabilizing tests and CI reliability to reduce false positives ahead of the next release. No customer-facing defects fixed this month; the emphasis was on groundwork that mitigates risk and accelerates future delivery.
July 2025
6 Commits • 1 Features
Jul 1, 2025July 2025 – Delivered a comprehensive testing uplift for the OpenRailAssociation/osrd project, centering on the Similar Trains endpoint. The work consolidated testing improvements into a robust infrastructure with new scenarios (no matches, compound routes, prioritization), test data builders, and enhanced mocking. Updated the Graph and similar_trains view to improve testability and data integrity in pathfinding and timetable tests. In addition to feature work, the month emphasized stabilizing tests and CI reliability to reduce false positives ahead of the next release. No customer-facing defects fixed this month; the emphasis was on groundwork that mitigates risk and accelerates future delivery.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on path property processing improvements in the OpenRailAssociation/osrd project. Delivered Path Properties Handling Improvements, including new constructors and PartialEq implementations for path-related data structures; refactored the path properties computation to centralize batch processing and caching, increasing reusability and efficiency. Tests were upgraded to mock core client responses and validate path property outputs, improving reliability and coverage. The work is backed by two commits (bfbed4fcaf9a8eaf40cede6b2666ae228067c23b and aac8a69104527d5a52647c2ec3339dc1c3748c63), demonstrating a targeted shift toward robust, maintainable path property logic. Expected business impact includes faster, more reliable path computations and easier future enhancements for routing workflows.
2 Commits • 1 Features
Jun 1, 2025June 2025 focused on path property processing improvements in the OpenRailAssociation/osrd project. Delivered Path Properties Handling Improvements, including new constructors and PartialEq implementations for path-related data structures; refactored the path properties computation to centralize batch processing and caching, increasing reusability and efficiency. Tests were upgraded to mock core client responses and validate path property outputs, improving reliability and coverage. The work is backed by two commits (bfbed4fcaf9a8eaf40cede6b2666ae228067c23b and aac8a69104527d5a52647c2ec3339dc1c3748c63), demonstrating a targeted shift toward robust, maintainable path property logic. Expected business impact includes faster, more reliable path computations and easier future enhancements for routing workflows.
June 2025
May 2025
8 Commits • 3 Features
May 1, 2025May 2025 performance summary for OpenRailAssociation/osrd. Focused on architectural consolidation, API expansion, and data enrichment to improve maintainability, testability, and feature velocity. Delivered substantive EdioToast refactor, introduced a new similar-trains scheduling API, and enhanced PacedTrain changeset to capture category information. No critical bugs reported; stabilization achieved through refactors and API improvements.
May 2025
8 Commits • 3 Features
May 1, 2025May 2025 performance summary for OpenRailAssociation/osrd. Focused on architectural consolidation, API expansion, and data enrichment to improve maintainability, testability, and feature velocity. Delivered substantive EdioToast refactor, introduced a new similar-trains scheduling API, and enhanced PacedTrain changeset to capture category information. No critical bugs reported; stabilization achieved through refactors and API improvements.
April 2025
12 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary focusing on delivering robust API capabilities, a resilient simulation backend, and expanded domain modeling for OpenRailAssociation/osrd. Key improvements were aligned with business value: clearer communication of scheduling outcomes to clients, more predictable error handling, and data model enhancements that support richer analytics and planning.
12 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary focusing on delivering robust API capabilities, a resilient simulation backend, and expanded domain modeling for OpenRailAssociation/osrd. Key improvements were aligned with business value: clearer communication of scheduling outcomes to clients, more predictable error handling, and data model enhancements that support richer analytics and planning.
April 2025
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025 summary for OpenRailAssociation/osrd: Delivered three core initiatives that strengthen reliability, reproducibility, and maintainability, with a focus on business value and technical depth. The work improved error handling across the stack, encapsulated hashing logic for critical simulation components, and cleaned up internal structures to reduce technical debt. These changes enable more predictable deployments, faster troubleshooting, and clearer developer intent across core, views, and clients.
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025 summary for OpenRailAssociation/osrd: Delivered three core initiatives that strengthen reliability, reproducibility, and maintainability, with a focus on business value and technical depth. The work improved error handling across the stack, encapsulated hashing logic for critical simulation components, and cleaned up internal structures to reduce technical debt. These changes enable more predictable deployments, faster troubleshooting, and clearer developer intent across core, views, and clients.
February 2025
6 Commits • 2 Features
Feb 1, 2025February 2025: Delivered Rolling Stock Category Support and core data model/serialization consistency improvements for OpenRailAssociation/osrd. These changes enable nuanced asset categorization, more stable APIs, and a maintainable data layer, laying groundwork for analytics and reporting while reducing future technical debt.
6 Commits • 2 Features
Feb 1, 2025February 2025: Delivered Rolling Stock Category Support and core data model/serialization consistency improvements for OpenRailAssociation/osrd. These changes enable nuanced asset categorization, more stable APIs, and a maintainable data layer, laying groundwork for analytics and reporting while reducing future technical debt.
February 2025
January 2025
3 Commits • 1 Features
Jan 1, 2025January 2025: OpenRailAssociation/osrd delivered reliability and clarity improvements in the Editoast module. Key changes include renaming the authorization flag to enable_authorization for clearer defaults, fixing a gap where work schedule times could be cropped, improving STDCm payload generation to include start times, refining conflict detection logic, and correcting a database migration rollback for the group name constraint. These updates reduce scheduling inaccuracies, improve deployment safety, and strengthen test coverage while preserving core functionality.
January 2025
3 Commits • 1 Features
Jan 1, 2025January 2025: OpenRailAssociation/osrd delivered reliability and clarity improvements in the Editoast module. Key changes include renaming the authorization flag to enable_authorization for clearer defaults, fixing a gap where work schedule times could be cropped, improving STDCm payload generation to include start times, refining conflict detection logic, and correcting a database migration rollback for the group name constraint. These updates reduce scheduling inaccuracies, improve deployment safety, and strengthen test coverage while preserving core functionality.
December 2024
4 Commits • 4 Features
Dec 1, 2024December 2024 monthly recap for OpenRailAssociation/osrd focused on elevating observability, API reliability, test fidelity, and data accessibility. Delivered four targeted features with accompanying infrastructure work, aligned with business value: improved tracing for debugging and performance insight; standardized API error semantics for clearer client handling; configurable test authorization to strengthen test coverage and security validation; and enhanced STDCM payload endpoints with robust logging and migrations to support tracing. Impact areas include reduced mean time to insight (MTTI) through end-to-end tracing, clearer API error responses reducing client integration friction, more reliable test scenarios with/without authorization, and easier access to STDCM data for diagnostics and analytics.
4 Commits • 4 Features
Dec 1, 2024December 2024 monthly recap for OpenRailAssociation/osrd focused on elevating observability, API reliability, test fidelity, and data accessibility. Delivered four targeted features with accompanying infrastructure work, aligned with business value: improved tracing for debugging and performance insight; standardized API error semantics for clearer client handling; configurable test authorization to strengthen test coverage and security validation; and enhanced STDCM payload endpoints with robust logging and migrations to support tracing. Impact areas include reduced mean time to insight (MTTI) through end-to-end tracing, clearer API error responses reducing client integration friction, more reliable test scenarios with/without authorization, and easier access to STDCM data for diagnostics and analytics.
December 2024
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for OpenRailAssociation/osrd: Delivers core STDCM API and data-structure refactor along with enhanced logging and tracing to boost robustness, traceability, and developer productivity. Focused on API/schema modernization, error-handling consolidation, and end-to-end observability to support faster incident response and safer deployments.
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly summary for OpenRailAssociation/osrd: Delivers core STDCM API and data-structure refactor along with enhanced logging and tracing to boost robustness, traceability, and developer productivity. Focused on API/schema modernization, error-handling consolidation, and end-to-end observability to support faster incident response and safer deployments.
Activity
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Quality Metrics
Correctness91.4%
Maintainability89.4%
Architecture89.2%
Performance82.6%
AI Usage24.8%
Skills & Technologies
Programming Languages
C++GoJSONJavaKotlinPythonRustSQLShellTypeScript
Technical Skills
API DefinitionAPI DesignAPI DevelopmentAPI IntegrationAPI MockingAPI TestingAPI designAPI developmentAuthorizationBackend DevelopmentCI/CDCargoCode CleanupCode ConsistencyCode Documentation
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