version: "1.0.2" name: aosp-getting-started description: | AOSP Part I — Getting Started. Use when reasoning about the AOSP source tree at a high level, the repo/manifest workflow, the Soong (Android.bp) and Bazel/Kleaf build systems, lunch targets, the m build entry point, or aconfig feature flags (build-time vs. runtime, release configs, ramp/cleanup workflows). Chapters 1–3 (Introduction, Source Code & Build System, Feature Flags). metadata: author: 'utzcoz' version: '2026.06.24' last-updated: '2026-09-12'

AOSP Part I — Getting Started

Foundational chapters that orient a reader to AOSP, its source tree, how to sync and build it, and how feature gating works across the platform.

Chapters in this Part

• 01-introduction.md — what AOSP is vs. Android, the layer-cake architecture, source-tree tour, who maintains what, version history
• 02-source-and-build.md — repo/manifest, Soong (Android.bp), Bazel-from-Soong, Kleaf for the kernel, lunch targets, the m workflow
• 03-feature-flags.md — aconfig declarations, generated Java/C++ accessors, build-time vs. runtime flags, release configs, ramp-and-cleanup workflow

When to load which chapter

• Question is "what is AOSP / where do I start" → 01-introduction.md
• Question mentions Soong, Bazel, Kleaf, repo, manifest, lunch, or m → 02-source-and-build.md
• Question mentions feature flags, aconfig, release configs, or read_only flags → 03-feature-flags.md