Roger Mogas focused on expanding internationalization for the KOReader User Guide in the koreaderhub.io.git repository by initiating a partial Catalan localization. He translated 205 out of 1,947 strings, achieving 10.5% coverage using the PO language format and the Weblate platform. Roger established a scalable, Weblate-driven localization workflow to streamline ongoing translation efforts, emphasizing content management and translation best practices. This work laid the foundation for improved accessibility for Catalan-speaking users and provided commit-level traceability for future contributions. While no bugs were fixed during this period, the depth of the localization workflow supports sustainable internationalization moving forward.