Getting Started With Zephyr: West Manifest Customization
Introduction The Zephyr Project RTOS (https://zephyrproject.org/), or simply “Zephyr” as it is known colloquially, is an increasingly popular real-time operating system due to its native support for over 450 boards and countless peripherals....
Summary
This blog walks through customizing Zephyr's West manifest to manage multi-repository Zephyr projects. It explains the manifest YAML structure, overrides, groups, and practical workflows for reproducible builds and CI integration.
Key Takeaways
- Configure West manifests to declare repositories, revisions, and groups for multi-repo Zephyr projects.
- Use local_overrides and manifest fragments to test and develop changes locally without altering upstream manifests.
- Manage pins, branches, and tags to achieve deterministic builds and control dependency versions.
- Integrate manifest generation, mirrors, and west commands into CI pipelines to speed fetches and ensure reproducible builds.
Who Should Read This
Embedded firmware engineers and build/CI engineers with some Zephyr or RTOS experience who need to manage multi-repo projects, dependency pinning, and CI workflows.
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