Samsung galaxy s7 with bare PostmarketOS. Standard PostmarketOS sshd, and I compiled my own cog VM (on the phone!). It's running on /dev/fb0 without X. I wrote more about it all: https://eighty-twenty.org/tag/squeak-phone/
Not yet. I'm working on it. Status is that I can send and receive SMS, and make and take calls (though the audio doesn't work yet). GPRS/LTE is next on the list.
