Worked on improving self-hosted deployment reliability for AppFlowy-Cloud by addressing a persistent asset loading issue. Focused on debugging and resolving a bug where image URLs in self-hosted environments incorrectly pointed to a beta domain after imports. The solution involved updating the Nginx configuration to add an X-Host header, ensuring proper host resolution and correct asset delivery. This change reduced user-reported errors and support tickets, streamlining onboarding for self-hosted users. Demonstrated skills in configuration management and DevOps, with a strong emphasis on Nginx and deployment workflows. All work was contributed to the AppFlowy-IO/AppFlowy-Cloud repository.