microG is a FLOSS (Free/libre and Open Source Software) reimplementation of proprietary malware apps Google Play Services and Google Play Store. It doesn't spy on you, doesn't eat up system resources and doesn't allow Google (or other people) backdoors into your device. However, installing it requires a patch called signature spoofing. This patch basically allows microG to spoof itself as the official Google Play Services/Play Store app, by spoofing it's own...Read more