# Overview

Read part one of Car-logger first, if you haven’t.

I chose to go with outdated Android phones in the previous article. Phones with CyanogenMod and no Google Play. This means that they run all free software, except for some firmware blobs and drivers. No background services driving up data or battery usage, no third party tracking my location.

I tried out Traccar. The app worked fine, but the backend was a big, horrible java thing. Poor UI, overkill for my purpose, and too much for me to get hacking on.