Summary
Even though you can build just about anything with Yocto, it's not always easy to tell what the build system is doing or how. There is hope for us, though. There are command-line tools to help us find where something came from and how to change it. There are task logs we can read from and write to. There is also devshell, which we can use to configure and compile individual things from the command line. And if we divide our projects into multiple layers from the outset, we are likely to get much more mileage out of the work
we do.
BitBake's mix of shell and Python supports some powerful language constructs, such as inheritance, overrides, and conditional variable selection. That's both good and bad. It's good in the sense that layers and recipes are completely composable and customizable. It's bad in the sense that metadata in different recipe files and different layers can interact in strange and unexpected ways. Combine those powerful language...
