David Santos enhanced Portuguese localization for the typst/typst repository, focusing on refining translations related to emails and telephone terminology. He updated translation assets and aligned terminology across both the user interface and documentation, ensuring consistency and accuracy for Portuguese-speaking users. Leveraging his skills in localization and translation management, David collaborated with another contributor to validate and quality-check the new translations. His work addressed internationalization readiness by reducing localization friction, thereby supporting smoother onboarding and broader adoption in Portuguese-speaking markets. The technical approach centered on text-based language assets, with careful attention to detail and coordination throughout the translation process.