recipes-bsp          - Anything with links to specific hardware or hardware configuration information
recipes-connectivity - Libraries and applications related to communication with other devices 
recipes-core         - What's needed to build a basic working Linux image including commonly used dependencies
recipes-devtools     - Tools primarily used by the build system (but can also be used on targets)
recipes-extended     - Applications which whilst not essential add features compared to the alternatives in
                       core. May be needed for full tool functionality.
recipes-gnome        - All things related to the GTK+ application framework
recipes-graphics     - X and other graphically related system libraries  
recipes-kernel       - The kernel and generic applications/libraries with strong kernel dependencies
recipes-multimedia   - Codecs and support utilties for audio, images and video
recipes-rt           - Provides package and image recipes for using and testing the PREEMPT_RT kernel
recipes-sato         - The Sato demo/reference UI/UX, its associated apps and configuration 
recipes-support      - Recipes used by other recipes but that are not directly included in images