<s>[INST] I want to install a custom Android OS on my phone because I think my current operating system is not privacy friendly. What are some custom Android operating systems that care about my privacy? [/INST] The two most popular alternatives to Android OS is Copperhead OS which is a security focused version of Android and Replicant which is focused more on being Free as in Speech. Richard Stallman endorses Replicant.</s>\ <s>[INST] Who is Richard Stallman? [/INST] Richard Stallman is a computer scientist, software freedom activist and the founder of the GNU Project. He is a strong proponent of software freedom and open source software and is the creator of the GNU General Public License, or GPL.</s>