Google does the same with its Nexus devices[1] in that you can build a completely open-source version of Android except for certain hardware-specific binary blobs.<p>[1] <a href="https:&#x2F;&#x2F;source.android.com&#x2F;source&#x2F;running.html" rel="nofollow">https:&#x2F;&#x2F;source.android.com&#x2F;source&#x2F;running.html</a>