March 2025: Delivered two major content enhancements across havuruta/2025-CS-OS and havuruta/2025-CS-Network, significantly enriching self-study resources. Key features delivered include expanded CPU Concepts Q&A and Networking Concepts Q&A for chapters 03–04, each linked to precise commits for traceability. No critical bugs were reported; ongoing QA and documentation improvements maintained. Overall impact: improved student readiness and teacher efficiency by providing ready-to-use practice materials and clearer concepts. Technologies/skills demonstrated: content design, domain expertise in computer architecture and networking, structured Q&A authoring, cross-repo collaboration, and disciplined Git usage.

February 2025 (2025-02) — Key features and quality improvements delivered across two repositories. Key features delivered: - havuruta/2025-CS-OS: Documentation enhancements in the README with three new Q&A items and a corrected Korean typographical error in the Chapter 01 CPU documentation, improving accuracy and learner guidance. - havuruta/2025-CS-Network: Enhanced README study materials with three new Q&A items and explanations across Chapters 01-04 (covering client-server interactions, OSI layer protocols, decapsulation, twisted-pair shielding, collision domains, and MAC-based VLANs). Major bugs fixed: - Corrected a Korean typographical error in the CPU documentation of Chapter 01 README in CS-OS. - No additional defects reported or tracked as of this month; changes are documentation/learning-material quality improvements. Overall impact and accomplishments: - Strengthened learning materials and documentation quality, enabling faster onboarding and clearer guidance for students and contributors. - Achieved cross-repo consistency in Q&A content, supporting a cohesive educational experience across OS and Networking modules. - Demonstrated disciplined content iteration with traceable commits to document-learning outcomes. Technologies/skills demonstrated: - Documentation best practices, QA/accuracy checks, and content design for instructional material. - Cross-repo collaboration and Git-based change history. - Foundational networking concepts (client-server interactions, OSI model, decapsulation, MAC-based VLANs) reflected in updated materials.