Explore the build system and directory structure of OpenWRT.
Understanding the build system and directory structure is crucial for efficiently customizing OpenWRT. The build system consists of scripts and tools that compile source code, create firmware images, and manage dependencies. By familiarizing oneself with this system, we can modify existing packages, add new ones, or tailor the firmware to specific hardware requirements. Similarly, understanding the directory structure helps in navigating the codebase and locating relevant files for modification or customization.