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.
**
**/
All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review.
IMPORTANT INFORMATION
Root is not included by default on LineageOS 14.1. You need to install an add-on via recovery. You only need to install this once. You can download the SU add-on
here
After installation go to Settings>Developer Options>Root access and set to Apps only or Apps and ADB.
LineageOS comes with LineageOS Recovery by default, if you don't like it (like me

) you can flash alternative recoveries using
IsoRec.
You really need 1GB /system partition. The smallest build-configuration is larger than 512mb. You can use ODIN, but you can also use Lanchon's REPIT.
If you're interested in BLN, check
this thread for a complete support of this feature.
If you're interested to go to emulated-storage, check
this thread.
Official LineageOS Wiki:
http://wiki.lineageos.org/
Changelog:
https://www.lineageoslog.com/14.1/i9100
LineageOS official nightly builds
https://download.lineageos.org/i9100
Google Apps:
http://opengapps.org/
XDA:DevDB Information
Lineage OS 14.1, ROM for the Samsung Galaxy S II
Contributors
rINanDO,
lysergic acid,
serenitys
ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.0.x
Based On: LineageOS
Version Information
Status: Nightly
Created 2017-02-13
Last Updated 2017-04-20