Worked on the jdx/mise repository to enhance the installation process for Ubuntu and Debian users by updating the Installation Guide to adopt a binary GPG key for package verification. This documentation-driven feature improved security and compatibility by replacing the traditional ASCII public key with a binary format, aligning with best practices for key management and reducing installation friction. The approach emphasized clear, traceable documentation using Markdown, with explicit commit references to support future audits. Leveraged skills in Linux, security, and technical writing to ensure the installation process is both reliable and maintainable, focusing on long-term auditability and user experience.