Developed and delivered a core feature for the jaywcjlove/awesome-mac repository by introducing Muxbar, a macOS menu bar controller designed to manage tmux sessions efficiently. The implementation enables users to list, attach, and terminate tmux sessions directly from the menu bar, streamlining workflow and reducing context switching for macOS developers. The feature includes a closed-lid mode to support laptop users, enhancing usability in portable scenarios. Work was contributed as a single, well-documented commit, utilizing Markdown for documentation and focusing on open source collaboration and macOS development. No bug fixes were recorded during this period, emphasizing feature delivery and integration.