This chapter was a great run! You prepared your system to build your first Android system. You learned how to configure and customize the build system. You learned the basic skills to create a custom module and include it into your system image. You created a system image from scratch and tested it on the Android emulator.
In the next chapter, we will raise the bar. We are going to move our efforts to a real hardware device. We will work with a smartphone, the Nexus 5, and a development board, the UDOO. We will manipulate the bootloader and the recovery partition to take complete control of the system.