error:
       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating derivation 'terraform'
         whose name attribute is located at «git+https://github.com/NixOS/nixpkgs?ref=nixpkgs-unstable&rev=f165e44f135784a494bca3d4ab4834c139f0b37d&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:651:11

       … while evaluating attribute 'text' of derivation 'terraform'
         at «git+https://github.com/NixOS/nixpkgs?ref=nixpkgs-unstable&rev=f165e44f135784a494bca3d4ab4834c139f0b37d&shallow=1»/pkgs/build-support/trivial-builders/default.nix:136:11:
          135|           name
          136|           text
             |           ^
          137|           executable

       … while evaluating definitions from `/nix/store/2rwcvjdjr5gv4h864wwfi5525jj5r8a3-source/machines/build01/terraform-configuration.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: attribute 'zerotier' missing
       at «git+file:///var/lib/nixbot/worktrees/8-0f0487569ee1-474?rev=6d6bb2b4b8ce62186bad7298654133e4fa5f6639»/machines/build01/terraform-configuration.nix:28:12:
           27|         inherit
           28|           (self.nixosConfigurations.build01.config.clan.core.vars.generators.zerotier.files.zerotier-ip)
             |            ^
           29|           value