Cynogen 13 marshmalloe for andriod one.

CyanogenMod is a free, community built, aftermarket firmware distribution of Android 6.0 (Marshmallow), which is designed to increase performance and reliability over stock Android for your device.

Code:

/*
 * Your warranty is now void.
 *
 * We are not responsible for bricked devices, dead SD cards,
 * thermonuclear war, or you getting fired because the alarm app failed. Please
 * do some research if you have any concerns about features included in this ROM
 * before flashing it! YOU are choosing to make these modifications, and if
 * you point the finger at us for messing up your device, we will laugh at you.
 *
 */

CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. You will need to provide your own Google Applications package (gapps). CyanogenMod does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for CyanogenMod is available in the CyanogenMod Github repo. And if you would like to contribute to CyanogenMod, please visit ourGerrit Code Review.

Download Links

CyanogenMod:
http://thunderzap.in/downloads

You can start by grabbing my build until first nightly is generated.
P.S: Only sprout4 for now

Google apps:
opengapps.org
Note: You need to flash the package right after you install the ROM. If you boot up and then go back and flash it, your phone won't boot.


Contributors
varun.chitre15
ROM OS Version: 6.0.x Marshmallow
ROM Kernel: Linux 3.10.x

Version Information
Status: Nightly