Over a two-month period, Andrea Grandi enhanced API capabilities and terminal user interfaces across two repositories. For laterpay/supertab-docs, Andrea revised the CAPI specification in Go and Markdown, updating data structures and documentation to streamline integration and reduce ambiguity for downstream developers. In yetone/opencode, Andrea developed a Git branch status bar using Go, implementing responsive TUI elements that dynamically reflect repository changes and adapt to terminal width. The work demonstrated careful attention to maintainability, clear documentation, and alignment with product requirements, resulting in features that improved developer productivity and onboarding while maintaining clean, traceable commit histories and robust code structure.