--- sidebar_navigation: title: Advanced configuration priority: 100 --- # Advanced configuration | ----------- | :---------- | | [List of supported environment variables](#TODO) | TODO: The full list of environment variables you can use to override the default configuration | | [Configuring SSL](#TODO) | How to configure SSL so that your OpenProject installation is available over HTTPS | | [Configuring outbound emails](#TODO) | How to configure outbound emails for notifications, etc. | | [Configuring inbound emails](#TODO) | TODO: How to configure inbound emails for work package updates directly from an email | | [Configuring a custom database](#TODO) | How to use an external database | | [Configuring a custom web server](#TODO) | TODO: How to use a custom web server (e.g. NginX) with your OpenProject installation | | [Configuring a custom web server](#TODO) | TODO: How to use a custom caching server with your OpenProject installation | | [Adding plugins](#TODO) | TODO: How to add plugins to your OpenProject installation |