for example. i have not one, but two, Neffos C5 phones that i'd dearly love to run something other than the stock Android (5.1) on. but getting to the first step (installing an alternative recovery image) requires fishing around the backwaters of the internet and trusting that the file you end up downloading is actually what it says it is, and not some program that'll download the entire contents of your phone to a server somewhere in Georgia (or whichever other US state the NSA are working in these days)