Developed a comprehensive Self-hosting Troubleshooting Guide for the inbox-zero repository, focusing on improving onboarding and reducing setup friction for self-hosted deployments. The work involved creating detailed documentation in Markdown that addresses common issues such as container startup failures, database connection errors, OAuth configuration problems, and performance bottlenecks. Leveraging DevOps and Docker expertise, the guide was aligned with existing product documentation standards and tailored for end-user clarity. This update aimed to provide actionable, consistent guidance for users, potentially reducing support requests and streamlining the deployment process. The contribution demonstrated a methodical approach to documentation and cross-team collaboration within the project.