Buildkite

1. Architecture

   Hybrid architecture: SaaS control plane and self-hosted agents.

2. Getting Started

   Pipelines, builds and agent basics.

3. Defining Steps

   Command, wait, block, input, trigger and group steps.

4. Step Types

   Step type reference and attributes.

5. Dynamic Pipelines

   Generating pipeline YAML at runtime.

6. Environment Variables

   Build environment variables and scoping.

7. Conditionals

   Conditional steps and build-level filtering.

8. Step Dependencies

   Using depends_on to build dependency graphs.

9. Annotations

   Adding rich build annotations.

10. Buildkite Agent

    Agent installation, queues, tags and lifecycle hooks.

11. Plugins

    Extending steps with plugins.

12. Best Practices

    Pipeline design, caching, monorepos and agent management.

13. Security

    Secrets, permissions, and securing pipelines.

14. Source Control Integrations

    GitHub, GitLab, Bitbucket and other repository integrations.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.