Contributed to foundational environment and NLP feature development across two open-source repositories. In microsoft/generative-ai-for-beginners, improved the development environment by updating environment.yml with the Microsoft channel and pip, enabling consistent Azure AI ML installation and reducing onboarding friction for contributors. In browser-use/browser-use, integrated the sentence-transformers library by updating pyproject.toml, establishing the groundwork for semantic search and text classification using pre-trained embeddings. Focused on reproducible setups and clean dependency management, the work demonstrated proficiency in Python, YAML, and package management. Each feature was delivered with clear traceability, supporting maintainable, scalable project growth without introducing new bugs during the period.