gistfile1.sh

function instantiate() {
  machine="${1}"; shift
  # do it
  true
  #drv="$(nix eval --pure-eval ".#nixosConfigurations.${machine}.config.system.build.toplevel")" # TODO: why????
  set -e
  drv="$(set -eu; nix --experimental-features 'nix-command flakes' --pure-eval \
    eval \
    --raw ".#machines.${machine}")"
  drv="$(set -euo pipefail; nix --experimental-features 'nix-command flakes' --pure-eval \
    show-derivation "${drv}" | jq -r 'to_entries[].key')"
  echo -e "${drv}"
}