hacks/fix-raspian-defaults/root.overlay/boot/per-once.d/98-setup-ssh-keys.sh

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#!/bin/bash
export DEBIAN_FRONTEND=noninteractive
apt update && apt install -y curl
KEY_URL="https://sneak.cloud/authorized_keys"
# CAUTION! /!\
# doing only passwd -d <user> means they can log in at the console
# with no password whatsoever - probably not what you want
curl -fLo /root/.ssh/authorized_keys --create-dirs $KEY_URL && \
passwd -d root && \
passwd -l root
curl -fLo /home/pi/.ssh/authorized_keys --create-dirs $KEY_URL && \
passwd -d pi && \
passwd -l pi
chown -R pi:pi /home/pi/.ssh