these 2 derivations will be built:
  /nix/store/vpamwjxaayhvn4xqzbjjijggr3iwzagb-opentofu-1.12.6.drv
  /nix/store/lzgvqrps73ly8cm62kpq5l3qkzy6s6x1-nix-shell.drv
this path will be fetched (30.2 MiB download, 109.8 MiB unpacked):
  /nix/store/860svhxynyrf5khp4k1hpil8id4sgjvx-opentofu-1.12.6