Charlie Blackwood contributed to the percona/pmm repository by delivering two targeted improvements focused on maintainability and security. He upgraded GolangCI-Lint in both the GitHub Actions workflow and Makefile, aligning CI/CD tooling with current standards and enhancing static analysis coverage. Additionally, he added the OpenSSF Best Practices badge to the project’s README, signaling a commitment to security best practices. His work utilized Makefile, YAML, and Markdown, demonstrating skills in build tools, documentation, and continuous integration. While the scope was limited to two features over one month, the changes provided measurable benefits in code quality, feedback speed, and user trust.