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diff --git a/static/source.html b/static/source.html index 37ea6cbc..6e272026 100644 --- a/static/source.html +++ b/static/source.html @@ -28,10 +28,18 @@ <li><a href="https://github.com/GrapheneOS/branding_tools">Scripting for managing branding</a></li> <li><a href="https://github.com/GrapheneOS/platform_manifest">Manifest for OS repositories</a></li> </ul> - <p>The operating system includes hundreds of repositories. The manifest repository - references all of these. Most of these are used unmodified from the Android Open - Source Project (AOSP). A few dozen of the repositories are either forked from AOSP or - are unique to GrapheneOS.</p> + <p>The operating system source tree includes hundreds of repositories. Many of these + are only used for debugging, testing or development and are not actually part of what + gets used for building a production release. The manifest repository references all of + these. Most of these are used unmodified from the Android Open Source Project (AOSP). + A few dozen of the repositories including most of the core OS are either forked from + AOSP or are unique to GrapheneOS. The operating system has a unified build system, but + some components like Chromium are too complex to fit into it so they're included as + prebuilts instead of porting them to the AOSP build system. This is also done for + developer convenience and bootstrapping, to avoid needing to build all the native / + cross-compilation toolchains for each host and target platform combination, etc. The + prebuilts can all be built from source if desired. The build instructions will be + expanded to cover all of this in the future.</p> <p>Chromium needs to be included in the GrapheneOS source tree as a prebuilt before building. The build metadata is in the <a href="https://github.com/GrapheneOS/chromium_build"> chromium_build repository</a> and the GrapheneOS patches are in the |