# Ch23-Configuration-System

- [23.1 Configuration Loading and Parsing](/en/ch23-configuration-system/23.1-configuration-loading-and-parsing.md)
- [23.2 Configuration Type System Deep Dive](/en/ch23-configuration-system/23.2-configuration-type-system-deep-dive.md)
- [23.3 Configuration Hot Reload](/en/ch23-configuration-system/23.3-configuration-hot-reload.md)
- [23.4 Legacy Configuration Migration](/en/ch23-configuration-system/23.4-legacy-configuration-migration.md)
- [23.5 Environment Variables](/en/ch23-configuration-system/23.5-environment-variables.md)