About that conversation involving some GuixSD user: He gave that kind of recommendation so easily? I'm shocked...
Unless the conversation was cut somewhere, I didn't see indication that you wanted/want to develop free/libre replacement for the non-free software needed for RPI 2 to work. In this case, that is if he was wasn't made aware of such commitment (if it ever exists on your part), then he shouldn't have made such recommendation, according to [[http://www.gnu.org/philosophy/applying-free-sw-criteria.html]] and [[http://www.gnu.org/philosophy/is-ever-good-use-nonfree-program.html]].
