error:
       … while evaluating a branch condition
         at «string»:25:5:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |     ^
           26|       v

       … in the left operand of the OR (||) operator
         at «string»:25:28:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |                            ^
           26|       v

       … while evaluating definitions from `/nix/store/s0fpxz3rvfip9bc50wfmwpigxiyl6nkg-source/modules/transposition.nix':

       … while evaluating definitions from `/nix/store/fg4nri8ja408d6x7kjmbx4bf2wwngrrc-source/flake/checks.nix, via option perSystem':

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

       error: The option `modules' does not exist. Definition values:
       - In `/nix/store/fg4nri8ja408d6x7kjmbx4bf2wwngrrc-source/hosts/mali/borgbackup-server.nix':
           {
             services = {
               sshd = {
                 openFirewall = false;
               };
           ...

       Did you mean `console', `fonts' or `ids'?