Maintainability is a user experience concern. When an interface is difficult to change, small improvements become expensive and users feel that friction over time.
Give repeated things a home
Repeated content should live in data. Repeated behavior should live in a component. Repeated visual decisions should live in the design system. That separation keeps the page readable.
- Use semantic elements before adding ARIA.
- Keep content separate from layout code.
- Name components around responsibility, not appearance.
Make the easy path the obvious path
A good system reduces the number of decisions a future change requires. Clear names, stable spacing, and focused components are quiet productivity tools.
Keep building useful things.