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/wddfacd8ng9gswdg3d1il4wg32skxxvv-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 `assertions':

       … while evaluating definitions from `/nix/store/c1ka0xdxj00wakzkqx8ccpkjjcjsnkmc-source/modules/sops':

       … while evaluating the option `sops.secrets':

       … while evaluating definitions from `/nix/store/dq47asgly8xalh2m9p4jq275fk9r6j4g-source/nixosModules/clanCore/vars/secret/sops':

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

       error: The option `clan.core.vars.generators.chris-mail.migrateFact' does not exist. Definition values:
       - In `/nix/store/wddfacd8ng9gswdg3d1il4wg32skxxvv-source/modules/mailserver.nix': "chris-mail"

       Did you mean `clan.core.vars.generators.chris-mail.files', `clan.core.vars.generators.chris-mail.finalScript' or `clan.core.vars.generators.chris-mail.name'?