Ground Zero ROMs, the ROM development team that brought us the popular custom ROMs Tesla, Tipsy, and Validus, has provided a central Android Oreo repository from which custom ROMs can be built without having to start from scratch (meaning straight from AOSP). The idea of the Ground Zero Open Source Project (GZOSP) is to give custom ROM builders a better starting point with both the necessary AOSP code and the CAF (Code Aurora Forum, Qualcomm’s own repository which is useful for non-Nexus devices with Snapdragon SoCs) code to build for a wide variety of devices.

It should not be confused with the popular ROMs Tesla, Tipsy, and Validus because it contains none of the features that make those ROMs unique. Accordingly, when you build from this repository, the team requests that you do not brand your ROM as an unofficial Tesla, Tipsy, or Validus build until they’ve released the first official version for public consumption.