kiesraad/abacus
Oct 2024 – May 2026
20 Months active
Languages Used
BashCSSHTMLShellDockerfileRustSQLTOML
Technical Skills
Asset ManagementBuild AutomationDevOpsFrontend DevelopmentScriptingVite
Marlon Peeters
PROFILE
Marlon Peeters
Over 20 months, contributed to the kiesraad/abacus repository by building and refining election management workflows, backend APIs, and frontend interfaces. Delivered features such as robust data entry state machines, EML-based election definition import, audit logging, and type-safe entity identifiers, focusing on reliability and maintainability. Applied technologies including Rust, TypeScript, and SQL to implement secure authentication, automated testing, and data generation pipelines. Enhanced user experience through accessible UI components and improved error handling, while strengthening deployment and CI/CD processes. The work emphasized end-to-end test coverage, code quality, and traceable change management, supporting scalable, auditable, and compliant election operations.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
70Total
Bugs
5
Commits
70
Features
39
Lines of code
22,998
Activity Months20
Your Network
17 peopleSame Organization
@tweedegolf.com4
Work History
May 2026
4 Commits • 2 Features
May 1, 2026May 2026 monthly summary for kiesraad/abacus: Focused on strengthening test coverage for the P 22-2 PDF generation and election logic, and cleaning up the user access flow. Delivered deterministic smoke tests, robust data generation for diverse scenarios, and a targeted AuthorizationGuard refactor that streamlines account access and removes the legacy UserHomePage. These efforts reduce regression risk, improve confidence ahead of releases, and demonstrate automation, data-driven testing, and secure, scalable auth flow improvements.
4 Commits • 2 Features
May 1, 2026May 2026 monthly summary for kiesraad/abacus: Focused on strengthening test coverage for the P 22-2 PDF generation and election logic, and cleaning up the user access flow. Delivered deterministic smoke tests, robust data generation for diverse scenarios, and a targeted AuthorizationGuard refactor that streamlines account access and removes the legacy UserHomePage. These efforts reduce regression risk, improve confidence ahead of releases, and demonstrate automation, data-driven testing, and secure, scalable auth flow improvements.
May 2026
April 2026
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for kiesraad/abacus focused on delivering a high-value data generation feature for CSB elections and establishing traceable, co-authored commits. The month emphasized feature delivery and collaboration, with no major bug fixes recorded. Key outcomes: enhanced testing readiness and data diversity for election data via multi-variant P22-2 generation.
April 2026
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for kiesraad/abacus focused on delivering a high-value data generation feature for CSB elections and establishing traceable, co-authored commits. The month emphasized feature delivery and collaboration, with no major bug fixes recorded. Key outcomes: enhanced testing readiness and data diversity for election data via multi-variant P22-2 generation.
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 delivered a critical enhancement to election generation in kiesraad/abacus by adding a Committee category input to support GSB and CSB elections. The work spanned API updates, data generation adjustments, and frontend form integrations to reflect the new committee category, enabling more accurate election modeling and configuration. The implementation was tied to the CSB election generation initiative (#2966) and includes the commit 7d7c2542de09df2ec212a0604feb28177029ec8b (co-authored by stacktraceghost). No major bugs were reported this month. Overall impact: improved data fidelity and configurability for election planning, reduced manual data handling, and faster scenario testing for stakeholders. Key technologies demonstrated: API design and versioning, data generation tooling, frontend integration, and collaborative Git practices.
1 Commits • 1 Features
Mar 1, 2026March 2026 delivered a critical enhancement to election generation in kiesraad/abacus by adding a Committee category input to support GSB and CSB elections. The work spanned API updates, data generation adjustments, and frontend form integrations to reflect the new committee category, enabling more accurate election modeling and configuration. The implementation was tied to the CSB election generation initiative (#2966) and includes the commit 7d7c2542de09df2ec212a0604feb28177029ec8b (co-authored by stacktraceghost). No major bugs were reported this month. Overall impact: improved data fidelity and configurability for election planning, reduced manual data handling, and faster scenario testing for stakeholders. Key technologies demonstrated: API design and versioning, data generation tooling, frontend integration, and collaborative Git practices.
March 2026
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for kiesraad/abacus: Delivered a focused auditability enhancement by refining the Audit Log System. This work improves structure, clarity, and consistency of audit events, enabling clearer compliance reporting and easier future maintenance. Key changes include renaming fields and updating event types to standardize audit data across the system, laying groundwork for analytics and regulatory reporting. The change is documented in commit c6f2fd9a5159bcbc6d5e6833e7564feb04b5dbee as 'Audit Log Event refactor (#2788)'.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for kiesraad/abacus: Delivered a focused auditability enhancement by refining the Audit Log System. This work improves structure, clarity, and consistency of audit events, enabling clearer compliance reporting and easier future maintenance. Key changes include renaming fields and updating event types to standardize audit data across the system, laying groundwork for analytics and regulatory reporting. The change is documented in commit c6f2fd9a5159bcbc6d5e6833e7564feb04b5dbee as 'Audit Log Event refactor (#2788)'.
January 2026
3 Commits • 1 Features
Jan 1, 2026January 2026 (2026-01) – Key feature delivery focused on improving type safety and data integrity in kiesraad/abacus. Implemented explicit typed IDs for CommitteeSessionId, PollingStationId, and UserId across queries and data structures, enabling safer API contracts and reducing ID-related bugs. This work involved three commits that formalize the newtypes and reflect collaborative development. No major bug fixes were tracked this month; the changes reduce a class of potential runtime errors and lay the groundwork for safer refactors and future features. Impact: higher reliability, easier maintenance, and clearer data models, with business value in reduced risk and faster future development. Technologies/skills: type-safe design, incremental feature delivery, cross-team collaboration, and Git-based traceability.
3 Commits • 1 Features
Jan 1, 2026January 2026 (2026-01) – Key feature delivery focused on improving type safety and data integrity in kiesraad/abacus. Implemented explicit typed IDs for CommitteeSessionId, PollingStationId, and UserId across queries and data structures, enabling safer API contracts and reducing ID-related bugs. This work involved three commits that formalize the newtypes and reflect collaborative development. No major bug fixes were tracked this month; the changes reduce a class of potential runtime errors and lay the groundwork for safer refactors and future features. Impact: higher reliability, easier maintenance, and clearer data models, with business value in reduced risk and faster future development. Technologies/skills: type-safe design, incremental feature delivery, cross-team collaboration, and Git-based traceability.
January 2026
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for kiesraad/abacus focusing on type-safety improvements and code quality. Delivered a targeted feature that enhances safety around election identifiers by introducing a new ElectionId type. This lays a safer foundation for elections-related logic and reduces risk of mis-typed IDs in downstream features.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for kiesraad/abacus focusing on type-safety improvements and code quality. Delivered a targeted feature that enhances safety around election identifiers by introducing a new ElectionId type. This lays a safer foundation for elections-related logic and reduces risk of mis-typed IDs in downstream features.
November 2025
4 Commits • 2 Features
Nov 1, 2025November 2025 (kiesraad/abacus). Focused on deployment modernization, data integrity, and UX improvements that collectively improve efficiency, reliability, and user experience. Key outcomes include streamlined deployments by retiring the pull-and-run script, more reliable test data via updated SQL fixtures, and enhanced election UI with case-insensitive hash input, improved typography, and clearer zero-vote display.
4 Commits • 2 Features
Nov 1, 2025November 2025 (kiesraad/abacus). Focused on deployment modernization, data integrity, and UX improvements that collectively improve efficiency, reliability, and user experience. Key outcomes include streamlined deployments by retiring the pull-and-run script, more reliable test data via updated SQL fixtures, and enhanced election UI with case-insensitive hash input, improved typography, and clearer zero-vote display.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025Delivered Airgap Connectivity Monitoring Enhancement in kiesraad/abacus: increased airgap connectivity check frequency from 60s to 30s to boost responsiveness; updated documentation to reflect the new behavior (commit e08466d0ee5837d9be6b8104f6e41ff5327dc374, #2330). No major bugs fixed this month; focus was on feature delivery and stability. Impact: faster detection of airgap issues, improved reliability and operational visibility. Technologies/skills demonstrated: performance tuning, monitoring, documentation, and disciplined change management.
October 2025
1 Commits • 1 Features
Oct 1, 2025Delivered Airgap Connectivity Monitoring Enhancement in kiesraad/abacus: increased airgap connectivity check frequency from 60s to 30s to boost responsiveness; updated documentation to reflect the new behavior (commit e08466d0ee5837d9be6b8104f6e41ff5327dc374, #2330). No major bugs fixed this month; focus was on feature delivery and stability. Impact: faster detection of airgap issues, improved reliability and operational visibility. Technologies/skills demonstrated: performance tuning, monitoring, documentation, and disciplined change management.
September 2025
3 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for kiesraad/abacus: Delivered a Corrigendum document workflow for Model Na 14-2, strengthened data integrity with integration tests around the investigation feature, and standardized terminology in the UI/docs. These efforts reduce risk, improve compliance, and demonstrate end-to-end feature delivery with test coverage and documentation alignment.
3 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for kiesraad/abacus: Delivered a Corrigendum document workflow for Model Na 14-2, strengthened data integrity with integration tests around the investigation feature, and standardized terminology in the UI/docs. These efforts reduce risk, improve compliance, and demonstrate end-to-end feature delivery with test coverage and documentation alignment.
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for kiesraad/abacus highlights targeted improvements to election data capture and reporting, with a focus on data quality, template standardization, and output accuracy. Delivered backend and API/frontend enhancements for data fields, plus a Typst reporting template to standardize outputs; and resolved a Typst template typo to ensure correct Dutch terminology.
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for kiesraad/abacus highlights targeted improvements to election data capture and reporting, with a focus on data quality, template standardization, and output accuracy. Delivered backend and API/frontend enhancements for data fields, plus a Typst reporting template to standardize outputs; and resolved a Typst template typo to ensure correct Dutch terminology.
July 2025
3 Commits • 3 Features
Jul 1, 2025July 2025 (2025-07) summary for kiesraad/abacus: Key features delivered: - File Input Accessibility and Focus Styling: improved focus states, accessible styling, and proper wrapping to provide clear visual feedback when the file input is focused. - User Login Failure Audit Logging: added audit trail for failed login attempts (capturing username and user agent); updates authentication flow to emit UserLoginFailed events and includes tests. - Election Creation: Counting Method Selection: added a counting method selection page (DSO/CSO) in the election creation workflow, with UI/routing updates and E2E test adjustments; DSO currently disabled. Major bugs fixed: - No standalone major bugs reported this month; improvements were delivered via feature work across accessibility, auditing, and workflow enhancements. Overall impact and accomplishments: - Strengthened user experience with accessible file input and clearer focus feedback, improving usability and accessibility compliance. - Enhanced security and traceability through login failure auditing and event emission, aiding incident response and auditing requirements. - Expanded election creation workflow with flexible counting method selection, enabling faster onboarding of new counting configurations and paving the way for future enablement of DSO. - Improved test coverage and maintainability through targeted E2E adjustments and accompanying tests. Technologies/skills demonstrated: - Frontend accessibility and UX polish (focus management, ARIA-friendly styling) - Authentication instrumentation and event-driven auditing - UI routing and E2E testing discipline - Test coverage, maintainability, and quality assurance
3 Commits • 3 Features
Jul 1, 2025July 2025 (2025-07) summary for kiesraad/abacus: Key features delivered: - File Input Accessibility and Focus Styling: improved focus states, accessible styling, and proper wrapping to provide clear visual feedback when the file input is focused. - User Login Failure Audit Logging: added audit trail for failed login attempts (capturing username and user agent); updates authentication flow to emit UserLoginFailed events and includes tests. - Election Creation: Counting Method Selection: added a counting method selection page (DSO/CSO) in the election creation workflow, with UI/routing updates and E2E test adjustments; DSO currently disabled. Major bugs fixed: - No standalone major bugs reported this month; improvements were delivered via feature work across accessibility, auditing, and workflow enhancements. Overall impact and accomplishments: - Strengthened user experience with accessible file input and clearer focus feedback, improving usability and accessibility compliance. - Enhanced security and traceability through login failure auditing and event emission, aiding incident response and auditing requirements. - Expanded election creation workflow with flexible counting method selection, enabling faster onboarding of new counting configurations and paving the way for future enablement of DSO. - Improved test coverage and maintainability through targeted E2E adjustments and accompanying tests. Technologies/skills demonstrated: - Frontend accessibility and UX polish (focus management, ARIA-friendly styling) - Authentication instrumentation and event-driven auditing - UI routing and E2E testing discipline - Test coverage, maintainability, and quality assurance
July 2025
June 2025
4 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for kiesraad/abacus highlighting key features delivered, major bugs fixed, and the overall impact on business value and technical quality. Focused on improving election management workflows, reliability of list synchronization, and correctness of IP handling in the airgap module, with strong emphasis on end-to-end testing and maintainability.
June 2025
4 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for kiesraad/abacus highlighting key features delivered, major bugs fixed, and the overall impact on business value and technical quality. Focused on improving election management workflows, reliability of list synchronization, and correctness of IP handling in the airgap module, with strong emphasis on end-to-end testing and maintainability.
May 2025
6 Commits • 3 Features
May 1, 2025May 2025 monthly summary for kiesraad/abacus. Focused on delivering a robust election creation workflow, validating hash-based inputs, and enabling EML-based election definition import. Three primary deliverables spanned frontend workflow enhancements, validation UX improvements, and backend/import integration, driving data integrity, faster setup, and scalable import capabilities. Key business value includes reduced manual validation errors, improved user experience during election creation, and readiness for production deployment of EML-based definitions.
6 Commits • 3 Features
May 1, 2025May 2025 monthly summary for kiesraad/abacus. Focused on delivering a robust election creation workflow, validating hash-based inputs, and enabling EML-based election definition import. Three primary deliverables spanned frontend workflow enhancements, validation UX improvements, and backend/import integration, driving data integrity, faster setup, and scalable import capabilities. Key business value includes reduced manual validation errors, improved user experience during election creation, and readiness for production deployment of EML-based definitions.
May 2025
April 2025
5 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for kiesraad/abacus focused on end-to-end feature delivery for election data integrity and UI enhancements. Implemented robust EML-based election definitions, enhanced discrepancy resolution workflow with audit logging, and expanded UI components with Storybook-ready variants. Demonstrated strong back-end API design, frontend file handling, state machine refactors, and improved error handling to increase data reliability and developer velocity.
April 2025
5 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for kiesraad/abacus focused on end-to-end feature delivery for election data integrity and UI enhancements. Implemented robust EML-based election definitions, enhanced discrepancy resolution workflow with audit logging, and expanded UI components with Storybook-ready variants. Demonstrated strong back-end API design, frontend file handling, state machine refactors, and improved error handling to increase data reliability and developer velocity.
March 2025
7 Commits • 4 Features
Mar 1, 2025March 2025 – Kiesraad/abacus: Security, governance, and reliability improvements with measurable business value. Highlights include strengthening authentication, tightening access control, enriching data-entry workflows, and stabilizing the frontend dev experience in containerized environments. This period delivered: (1) authentication hardening via stronger password validation, case-insensitive username lookups, and first-time password change prompts; (2) admin-only user deletion with updated integration tests; (3) granular data-entry state handling with a resolve option to manage discrepancies; (4) a frontend DevOps fix to run Vite dev server inside Docker containers; and (5) a scoped enhancement to authentication testing through test framework improvements.
7 Commits • 4 Features
Mar 1, 2025March 2025 – Kiesraad/abacus: Security, governance, and reliability improvements with measurable business value. Highlights include strengthening authentication, tightening access control, enriching data-entry workflows, and stabilizing the frontend dev experience in containerized environments. This period delivered: (1) authentication hardening via stronger password validation, case-insensitive username lookups, and first-time password change prompts; (2) admin-only user deletion with updated integration tests; (3) granular data-entry state handling with a resolve option to manage discrepancies; (4) a frontend DevOps fix to run Vite dev server inside Docker containers; and (5) a scoped enhancement to authentication testing through test framework improvements.
March 2025
February 2025
6 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for kiesraad/abacus focused on delivering a robust User Management enhancement and API typings improvement. Key features delivered center on expanding the User model and its API surface, with end-to-end CRUD endpoints and last_activity_at tracking. The work also ensured typing accuracy and stability by integrating OpenAPI TypeScript generation for automatic, reliable typings.
February 2025
6 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for kiesraad/abacus focused on delivering a robust User Management enhancement and API typings improvement. Key features delivered center on expanding the User model and its API surface, with end-to-end CRUD endpoints and last_activity_at tracking. The work also ensured typing accuracy and stability by integrating OpenAPI TypeScript generation for automatic, reliable typings.
January 2025
5 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for kiesraad/abacus. Delivered robust data entry state transitions and a new user listing endpoint with timestamp handling improvements. Strengthened reliability, testing, and API typings to improve data integrity and developer velocity. The work enhances business value by preventing invalid operations, standardizing timestamps, and aligning frontend contracts with backend APIs.
5 Commits • 2 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for kiesraad/abacus. Delivered robust data entry state transitions and a new user listing endpoint with timestamp handling improvements. Strengthened reliability, testing, and API typings to improve data integrity and developer velocity. The work enhances business value by preventing invalid operations, standardizing timestamps, and aligning frontend contracts with backend APIs.
January 2025
December 2024
3 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for kiesraad/abacus. Focus on data-entry reliability and vote provenance. Delivered backend changes including EntryNumber enum and a new data-entry status state machine, API and frontend updates; plus documentation clarification for origin of votes.
December 2024
3 Commits • 2 Features
Dec 1, 2024December 2024 monthly summary for kiesraad/abacus. Focus on data-entry reliability and vote provenance. Delivered backend changes including EntryNumber enum and a new data-entry status state machine, API and frontend updates; plus documentation clarification for origin of votes.
November 2024
5 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for kiesraad/abacus focused on enabling end-to-end polling station management, enhancing data entry workflows, and improving local build tooling to support faster, docker-free deployments.
5 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for kiesraad/abacus focused on enabling end-to-end polling station management, enhancing data entry workflows, and improving local build tooling to support faster, docker-free deployments.
November 2024
October 2024
3 Commits • 3 Features
Oct 1, 2024Summary for 2024-10 — Kiesraad/abacus: Strengthened frontend build reliability and Vite asset workflow with three targeted enhancements, delivering deterministic builds, clearer visibility, and better asset management.
October 2024
3 Commits • 3 Features
Oct 1, 2024Summary for 2024-10 — Kiesraad/abacus: Strengthened frontend build reliability and Vite asset workflow with three targeted enhancements, delivering deterministic builds, clearer visibility, and better asset management.
Activity
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Quality Metrics
Correctness91.8%
Maintainability89.2%
Architecture86.8%
Performance86.2%
AI Usage24.8%
Skills & Technologies
Programming Languages
BashCSSDockerfileHTMLJSONJavaScriptMarkdownRustSQLShell
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI TestingAPI developmentAsset ManagementAuthenticationAuthorizationAxumBackend DevelopmentBuild AutomationBuild SystemsCI/CDCSSCSS Modules
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline