uhhh interesting. With optional persistence directories like in tails. Quite cool. Natively on the phones metal or via a thumbdrive like for desktop 

 Just buy a cheap thinkpad instead. It's more secure and cheaper than a phone.  

 Build a phone out of a rpi 

 TailsOS, but for cars 

 Cars need to be fixed so bad... 

 really hoping my 2000-era truck holds out for another 10 years 😬 

 yes! 

 Tor mode Graphene? 

 More interested in the amnesia part. 

 pitch:

fork Insular
https://secure-system.gitlab.io/Insular/

Find way for it to run only in RAM with extremely limited functionality

Make the container amnesic with forced refresh and routine RAM rewriting

Discover the nightmare fuel that is the Android stack

???

not-profit 

 That's what I'm looking for! I was playing with this recently and hit a dead end! Either paid options, or required root.