
Over four months, Adam Hasson contributed to the nl-design-system/rijkshuisstijl-community repository by migrating and refactoring core UI components to align with the evolving NL Design System Candidate. He delivered new features such as the Mijn Omgeving dashboard template and overhauled navigation, while modernizing the build pipeline with SCSS-to-CSS compilation and dependency management. Adam addressed design-implementation drift by updating components like headings, NumberBadge, and Paragraph, ensuring consistent styling and maintainability. Working primarily with React, TypeScript, and SCSS, he improved Storybook integration, enhanced testing, and maintained production stability through careful upgrades and rollbacks, demonstrating depth in both frontend engineering and system maintenance.

February 2025: Focused on migrating core UI components to the NL Design System Candidate, strengthening component reliability, and refreshing dependencies to boost stability and security. Delivered cross-system styling consistency, improved Storybook alignment, and foundational work for broader system adoption, resulting in measurable improvements in UI consistency and maintainability.
February 2025: Focused on migrating core UI components to the NL Design System Candidate, strengthening component reliability, and refreshing dependencies to boost stability and security. Delivered cross-system styling consistency, improved Storybook alignment, and foundational work for broader system adoption, resulting in measurable improvements in UI consistency and maintainability.
January 2025 - nl-design-system/rijkshuisstijl-community: Focused on aligning components with the NL design system candidate to reduce design-implementation drift and accelerate future migrations. Key deliverable: migrate heading components to NL design system candidate, migrating from the Utrecht prefix to NL and updating CSS variables and mixin calls across related components. Introduced two packages to support the migration: nl-design-system-candidate/heading-css and nl-design-system-candidate/heading-react. All changes captured under commit 7786487316aa91ba3125eae959d38cb6e27d052e. Business impact: improved consistency of headings across the UI, better maintainability, and a solid foundation for subsequent design-system adoption.
January 2025 - nl-design-system/rijkshuisstijl-community: Focused on aligning components with the NL design system candidate to reduce design-implementation drift and accelerate future migrations. Key deliverable: migrate heading components to NL design system candidate, migrating from the Utrecht prefix to NL and updating CSS variables and mixin calls across related components. Introduced two packages to support the migration: nl-design-system-candidate/heading-css and nl-design-system-candidate/heading-react. All changes captured under commit 7786487316aa91ba3125eae959d38cb6e27d052e. Business impact: improved consistency of headings across the UI, better maintainability, and a solid foundation for subsequent design-system adoption.
Monthly summary for 2024-12: Rijkshuisstijl Community design system - delivered a React 19 upgrade plan with stability safeguards, modernized tooling, and semantic naming improvements. Despite initial React 19 issues, the team implemented a fix and rollback to restore production stability, while preparing for future upgrades. Also modernized development experience with updated Storybook, Vite, and Prettier; migrated UI naming from BadgeCounter to NumberBadge for clearer semantics. These efforts reduce upgrade risk, improve DX, and align the codebase with modern React practices.
Monthly summary for 2024-12: Rijkshuisstijl Community design system - delivered a React 19 upgrade plan with stability safeguards, modernized tooling, and semantic naming improvements. Despite initial React 19 issues, the team implemented a fix and rollback to restore production stability, while preparing for future upgrades. Also modernized development experience with updated Storybook, Vite, and Prettier; migrated UI naming from BadgeCounter to NumberBadge for clearer semantics. These efforts reduce upgrade risk, improve DX, and align the codebase with modern React practices.
Month: 2024-11 — Summary focusing on key achievements in nl-design-system/rijkshuisstijl-community. Highlights include delivering Mijn Omgeving dashboard template with a new page component and Storybook navigation integration; introducing a CSS build pipeline that compiles SCSS to CSS and cleans up imports; a side navigation design overhaul with updated CSS variables and improved tests/Storybook stories; dependency upgrades and cleanup across Next.js, Storybook, and Utrecht libraries with a controlled rollback to maintain stability; removal of unused RIVM Storybook artifacts and polishing imports/configurations to improve documentation and discoverability. Overall, these efforts improved user-facing consistency, build reliability, and developer productivity, delivering measurable business value by accelerating UI delivery, reducing maintenance overhead, and enabling faster onboarding for new contributors.
Month: 2024-11 — Summary focusing on key achievements in nl-design-system/rijkshuisstijl-community. Highlights include delivering Mijn Omgeving dashboard template with a new page component and Storybook navigation integration; introducing a CSS build pipeline that compiles SCSS to CSS and cleans up imports; a side navigation design overhaul with updated CSS variables and improved tests/Storybook stories; dependency upgrades and cleanup across Next.js, Storybook, and Utrecht libraries with a controlled rollback to maintain stability; removal of unused RIVM Storybook artifacts and polishing imports/configurations to improve documentation and discoverability. Overall, these efforts improved user-facing consistency, build reliability, and developer productivity, delivering measurable business value by accelerating UI delivery, reducing maintenance overhead, and enabling faster onboarding for new contributors.
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