Flash using the Raspberry Pi Imager – don't forget to click into the settings cog and adjust things like username/password, host IP etc, and turn on SSH

Add blank file ssh to the boot partition to enable ssh server on first boot. (Will be removed on boot.) ←- shouldn't be needed any more.

Permanently enable ssh with sudo raspi-config → Interfacing Options → SSH.

sudo adduser slack

for g in sudo adm gpio pi dialout cdrom audio video plugdev games users input netdev lpadmin i2c spi; do
  sudo adduser slack $g
done

Raspbian contains more packages than Debian net install it seems.

[Starting from the “full” desktop install but pitched at headless]

apt-get install screen zsh

gem install pry awesome_print

  ln -s /sys/bus/w1/devices /home/slack/w1

As buster.

Copy over authorized_keys from alan.

ssh-keygen -t rsa -b 4096 -C slack-np@walter

Copy id_rsa.pub into any authosized_keys as needed.

Pi-hole arranges/messes with this, so if you're installing that maybe set the IP address that way.

To set the hostname, use hostnamectl set-hostname walter, and then fix up /etc/hosts.