1error:2 … while calling the 'derivationStrict' builtin3 at «nix-internal»/derivation-internal.nix:37:12:4 36|5 37| strict = derivationStrict drvAttrs;6 | ^7 38|89 … while evaluating derivation 'nix-shell'10 whose name attribute is located at «git+https://github.com/NixOS/nixpkgs?ref=nixpkgs-unstable&rev=8be7bd0c83f12e2e3bbba07c9044d6fed9e66f7f&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:651:111112 … while evaluating attribute 'buildInputs' of derivation 'nix-shell'13 at «git+https://github.com/NixOS/nixpkgs?ref=nixpkgs-unstable&rev=8be7bd0c83f12e2e3bbba07c9044d6fed9e66f7f&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:722:11:14 721| depsHostHost = hostHostOutputs;15 722| buildInputs = hostTargetOutputs;16 | ^17 723| depsTargetTarget = targetTargetOutputs;1819 … while evaluating definitions from `/nix/store/im6mxmjxnbmny1mkzbkfgp69gph8880g-source/machines/build01/terraform-configuration.nix':2021 (stack trace truncated; use '--show-trace' to show the full, detailed trace)2223 error: attribute 'zerotier' missing24 at «git+file:///var/lib/nixbot/worktrees/8-afedc1817532-269?rev=4794672d8ad8e3915963dc9bfd2e0f37e4f1ce4e»/machines/build01/terraform-configuration.nix:28:12:25 27| inherit26 28| (self.nixosConfigurations.build01.config.clan.core.vars.generators.zerotier.files.zerotier-ip)27 | ^28 29| value