Marcel developed the Morrog Speak Audio Fetching Plugin for the runelite/plugin-hub repository, focusing on dynamic audio processing and plugin development. The plugin enables remote retrieval of audio files from a server, expanding content delivery options for users. Marcel implemented explicit user-facing warnings to address IP visibility and server control, ensuring transparency around privacy and governance. The work was delivered as a single, traceable commit linked to a specific issue, reflecting a disciplined approach to code management. While the primary language used was plaintext, the project demonstrated depth in integrating server-based audio features and preparing the codebase for future enhancements.