As someone like me who I'm sure has used Graphene/Calyx for a few years, most of this will not be new.
Some of the more extreme side of things was interesting to hear, bit something I'd never implement because I use my phone way more day to day than he does.
I did pick up a few good nuggets to research further though. Things like NextDNS.
Oh and skip the first 15 mins, it had nothing to do with the title of the podcast.