Embedded Open Source Summit 2023

The open source project kas has its roots in the frustration about how tedious setup and hand-over of Yocto projects was. Started as a configurable Python script that combined git repository fetching with bitbake configuration file management, kas was quickly extended by a reference build container. With the rise of the Debian image build system Isar, it grew beyond its original domain and became the de facto standard for this new ecosystem. Still, most kas users and a growing number of contributors are coming from the Yocto/OpenEmbedded field. In this talk, we will introduce the philosophy behind kas and compare it to OE's new create-layers-setup feature and workflow. We will show how to bundle both configuration and build environment with your bitbake project using kas and kas-container and how to distribute this to other users or CI systems. Furthermore, we will look into advanced features like configuration file includes, interactive configuration menus, or secure integrity validation for repositories.