Hey I'm sorta new to the whole rooting thing. I understand how to root and how to get a recovery kinda. My question is custom ROMs. Everyone talks about them but my question is say I get CM12 its a nightly. Does it update via otas every night or do I have to physically go download the new nightly build? Also could someone explain the whole titanium back up? Or maybe link me a YouTube video. Its a pain to try to sift through the thousands of junk for the one quality video. Thanks all.