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 the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/9flc340jf86amkdpdaszvlkidjwv76xx-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `assertions':

       … while evaluating definitions from `/nix/store/9flc340jf86amkdpdaszvlkidjwv76xx-source/nixos/modules/system/boot/systemd.nix':

       … while evaluating the option `systemd.services':

       … while evaluating definitions from `/nix/store/9flc340jf86amkdpdaszvlkidjwv76xx-source/nixos/modules/services/networking/syncthing.nix':

       … while evaluating the option `services.syncthing.settings.devices':

       … while evaluating definitions from `/nix/store/lh632b58kx7fcqcn053140h8vsl6xjxa-source/clanModules/syncthing/shared.nix':

       … while evaluating the option `clan.syncthing.introducer':

       … while evaluating definitions from `/nix/store/lh632b58kx7fcqcn053140h8vsl6xjxa-source/clanModules/syncthing/roles/peer.nix':

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

       error: attribute 'syncthing' missing
       at «https://git.clan.lol/api/v1/repos/clan/clan-core/archive/2ea4bd059cf0efa347be88975698fca6552c74d8.tar.gz?narHash=sha256-fmNpPAl01EOC1Brm/d9eFSvtEK2PdbY46NkBriQgil0%3D»/clanModules/syncthing/roles/peer.nix:5:14:
            4|   instanceName = builtins.head instanceNames;
            5|   instance = config.clan.inventory.services.syncthing.${instanceName};
             |              ^
            6|   introducer = builtins.head instance.roles.introducer.machines;