Worked on the Elektrobit/ebcl_template repository to enhance documentation for Apt Repository Authentication, focusing on improving the onboarding process and reducing misconfiguration risks when using private apt sources. The contribution centered on creating clear, step-by-step Markdown documentation that guides users through authenticating with private repositories, including detailed instructions for credential storage using .ebcl_config/auth.d/ and .conf files. An Artifactory example was provided to illustrate practical usage. This documentation update, delivered as a single commit, emphasized security best practices and streamlined deployment workflows. The work demonstrated strong skills in technical writing, documentation structuring, and secure configuration management using Markdown.