#!/usr/bin/env bash

TARGETS="$(nix --extra-experimental-features "nix-command flakes" eval --raw ".#nixosConfigurations" --apply "nixosConfigurations: builtins.concatStringsSep \"\\n\" (builtins.attrValues (builtins.mapAttrs (name: host: host.config.networking.fqdn) nixosConfigurations))")"

pssh -h <(echo "${TARGETS}") -i -- sudo systemctl start bijwerken-system-upgrade.service --no-block