Developed and expanded structured study materials for the havuruta/2025-CS-OS and havuruta/2025-CS-Network repositories, focusing on enhancing student learning through detailed practice questions and clarifications. Leveraged computer science fundamentals and technical writing skills to create and refine Markdown-based documentation, covering topics such as RAM, ROM, CPU-memory interactions, compiled languages, and networking protocols. The work emphasized maintainability and clarity, with cross-repository improvements to documentation hygiene that support onboarding and ongoing use. All contributions centered on educational content creation, providing in-depth explanations and Q&A expansions that align with course outcomes and facilitate a deeper understanding of core technical concepts.