Article 5 proved the tree builds and boots. Now we trace what actually made that happen: envsetup shell glue, lunch target discovery, inherited product makefiles, Soong namespaces, and the output metadata files that explain where the build really went.
April 23, 2026
8 min read
Building ArjunaOS #6: Understanding the Android Build System
ArjunaOS
LineageOS
AOSP
Android Build System
Soong
lunch
PPrasad Manoj Parulkar
Prasad Manoj Parulkar
AOSP Engineer
Article 6 of 6
Building ArjunaOS: Create Your Own Custom Android OS
Learn to build your own custom Android OS from scratch. This series walks you through creating ArjunaOS, a custom ROM based on LineageOS, starting from setting up your build environment and compiling your first build, through branding and system customization, to adding custom system services and advanced features. Covers the complete journey across three parts: building the OS, adding features, and deep customization.
Series Progress100%
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