Z:gnu-www-ja-android-and-users-freedom--1a798d-Android is not a self-hosting/en

Android is not a self-hosting system; development for Android needs to be done on some other system. The tools in Google's &ldquo;software development kit&rdquo; (SDK) appear to be free, but it is hard work to check this. The definition files for certain Google APIs are nonfree. Installing the SDK requires signing a proprietary software license, which you should refuse to sign.  Replicant's SDK is a free replacement.