Over a two-month period, contributed to both documentation and backend reliability across ClickHouse/clickhouse-docs and marimo-team/marimo. Enhanced the ClickHouse documentation site by refining Marimo integration guides, clarifying installation and SQL execution steps, and restructuring navigation for improved discoverability, using Markdown and configuration management skills. Maintained content accuracy through regular housekeeping, including spell checking and linting. In marimo-team/marimo, addressed test reliability by fixing a bug in the print_code path, ensuring aggregation functions handled numeric-only columns correctly. Leveraged Python for data manipulation and testing, resulting in more stable CI processes and clearer, more maintainable documentation for end users and developers.