error:
       … while evaluating a branch condition
         at «string»:23:10:
           22|     if !keepName n then {}
           23|     else if !builtins.isAttrs c || isDrv c then c
             |          ^
           24|     else if c ? _type || !(c.recurseForDerivations or true) then {}

       … in the left operand of the OR (||) operator
         at «string»:23:33:
           22|     if !keepName n then {}
           23|     else if !builtins.isAttrs c || isDrv c then c
             |                                 ^
           24|     else if c ? _type || !(c.recurseForDerivations or true) then {}

       … while evaluating definitions from `/nix/store/lrxvs4l9bqbgjfz7w9bkfg5zqq442jxc-source/modules/transposition.nix':

       … while evaluating definitions from `/nix/store/r6s0k60spssfg7x3034f7v58g41fy9lj-source/checks/flake-module.nix, via option perSystem':

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/2iaxnsbnn8b812dlp2hlr1df6l3a2iix-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `warnings':

       … while evaluating definitions from `/nix/store/2iaxnsbnn8b812dlp2hlr1df6l3a2iix-source/nixos/modules/system/boot/systemd.nix':

       … while evaluating the option `systemd.services.zerotierone.serviceConfig':

       … while evaluating definitions from `/nix/store/2iaxnsbnn8b812dlp2hlr1df6l3a2iix-source/nixos/modules/system/boot/systemd.nix':

       … while evaluating the option `systemd.services.zerotierone.preStart':

       … while evaluating definitions from `/nix/store/2iaxnsbnn8b812dlp2hlr1df6l3a2iix-source/nixos/modules/services/networking/zerotierone.nix':

       … while evaluating the option `services.zerotierone.joinNetworks':

       … while evaluating definitions from `/nix/store/ml91svbyh1faljw3cqahc2f8ab6sflm3-source/clanServices/zerotier/default.nix, via option flake.clan._services.allServices.clan-core-zerotier.perMachine, via option nixosModule':

       … while evaluating the option `clan.core.vars.generators.zerotier-network-zerotier-claninfra.files.network-id.value':

       … while evaluating the option `clan.core.vars.generators.zerotier-network-zerotier-claninfra.files.network-id.path':

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

       error: File 'network-id' at 'shared/zerotier-network-zerotier-claninfra' does not exist. Try running 'clan vars generate' first.