Luca contributed targeted UX and localization improvements to the documenso/documenso repository, focusing on the document signing interface. He refined German translations to clarify instructions for inserting and completing fields, directly addressing user confusion for German-speaking signers. On the frontend, Luca resolved a UI issue on iPadOS by applying CSS user-select properties, preventing accidental text selection in the signature pad and ensuring a smoother signing experience across devices. His work emphasized maintainable, incremental commits and adhered to established localization workflows. Using TypeScript, CSS, and PO files, Luca delivered focused enhancements that improved both the clarity and reliability of the signing process.