What is CyanogenMod?
CyanogenMod (/sɪˈænoʊdʒəŋmäd/) is a customized, aftermarket firmware distribution for select Android devices.
Intended as a replacement for the software (also known as the "firmware" or "ROM") that comes factory installed on your device, CyanogenMod is based on the Android Open Source Project – the same base software used in all Android devices. However, CyanogenMod offers several benefits over the pre-installed firmware, including vastly flexible interface and customization, a wider set of new features, and sometimes significant improvements in performance. (From the Cyanogenmod Wiki
How do I unlock my bootloader, root the Nexus 10, and install a custom recovery?
The easiest way to unlock your bootloader, gain root access, and install a custom recovery is to use one of the Nexus 10 toolkit's either mskip's Nexus 10 Toolkit
, WugFresh's Wug's Nexus Root Toolkit
, or for Linux users tatelucas's Universal Nexus Linux Toolkit
What are nightly builds?
A nightly build is a neutral build that takes place automatically. These typically take place when no one is likely to be working in the office so that there are no changes to the source code during the build. The results of the build are inspected by the arriving programmers, who generally place a priority on ensuring the recent changes to the source code have not broken the build process or functionality of the software. (From Wikipedia Nightly Builds article
What are Google Apps? And where can I get them?
Google Apps contain the proprietary Google applications that come pre-installed with most android devices. Due to licensing restrictions, these apps cannot come pre-installed with CyanogenMod and must be installed separately. CyanogenMod does not require Google Apps to function properly, however, to take full advantage of the Android system, Google Apps are recommended. (From the Cyanogenmod Wiki
You can get the latest Google Apps for Cyanogenmod 10.1 here
and choosing Cyanogenmod 10.1 for the Google App version.
How can I find more about Cyanogenmod?
You can find out more information about Cyanogenmod by visiting there website at www.cyanogenmod.org
and/or by checking out there wiki at http://wiki.cyanogenmod.org