Editing a Unit's Source Without Leaving the Build

Editing the source of a unit is one of the most common things you do while building an embedded Linux system. You hit a bug in an application, you need a patch in the kernel, you want to try a change before it lands upstream. In most build systems that means dropping out of the tool, cloning the repo somewhere else, wiring up a patch or a local override, and rebuilding. The latest walkthrough…