#cloud-config
hostname: $HOSTNAME_HERE
users:
- default
- name: $USER_NAME_HERE (i just use "user")
  groups: users,admin
  shell: /bin/bash
  sudo: ALL=(ALL) NOPASSWD:ALL
  ssh_authorized_keys:
  - ssh-ed25519 $SSH_KEY_HERE user
package_update: true
package_upgrade: true
packages:
- i2c-tools
- samba
- $MORE_PACKAGES_HERE

# (on macos) install ubuntu on an sd card:
# curl -LO https://cdimage.ubuntu.com/releases/24.04/release/ubuntu-24.04-preinstalled-server-arm64+raspi.img.xz
# gunzip ubuntu-24.04-preinstalled-server-arm64+raspi.img.xz
# cat ubuntu-24.04-preinstalled-server-arm64+raspi.img | sudo tee /dev/disk$SD_CARD_DISK_NUMBER_HERE
#
# (rpi have a graphical tool https://www.raspberrypi.com/software/ but i have no idea how well it works)
#
# then put this file in the first partition as as "user-data" (no extension). it will be a fat32 partition with
# some other files (README, cmdline.txt, etc.).