The people (other than me) in this thread have provable track records talking about this field. They're asking for more details and you just keep insulting them.
The message I posted here https://news.ycombinator.com/item?id=42557398 is excessively detailed.
What we did was put de-blobbed GrapheneOS on a compute board, put secure boot on another compute board, punt the radio onto a separate compute board, add a battery, and manage it all with a management board in a small backpack, with a USB touchscreen for user interface.
Then we productized it for select groups of people.
But, it's really not that complicated. Like it's really not. Many people have built these kinds of things before.
If you want to try to tell me that mindslight has a "provable track record" talking about this field, I have a very very hard time believing something like that because -- and I'm being honest here -- as any reasonable person will also conclude: his responses he has posted here are really fuckin' stupid.
And, yes, I will continue to look down my nose at you as someone who is grossly inferior to me.
All hail devops99 and may the platforms that you build be favoured by your subjects, as unworthy as they surely are.
I'd be pleasantly surprised, and believe you'd achieved a modicum of self awareness, if you just deleted everything you posted here. But I fear that would be out of character...