1error:2 … while evaluating a branch condition3 at «string»:23:10:4 22| if !keepName n then {}5 23| else if !builtins.isAttrs c || isDrv c then c6 | ^7 24| else if c ? _type || !(c.recurseForDerivations or true) then {}89 … in the left operand of the OR (||) operator10 at «string»:23:33:11 22| if !keepName n then {}12 23| else if !builtins.isAttrs c || isDrv c then c13 | ^14 24| else if c ? _type || !(c.recurseForDerivations or true) then {}1516 … while evaluating definitions from `/nix/store/xfg4bws749i95jvnxhymxmfwailzk38q-source/modules/transposition.nix':1718 … while evaluating definitions from `/nix/store/7mv3licp06ajqlskhzk4n1hydf3svf24-source/flake.nix, via option perSystem':1920 (stack trace truncated; use '--show-trace' to show the full, detailed trace)2122 error: undefined variable 'peterKeys'23 at /var/lib/nixbot/worktrees/82-7520aacd16d6-87c94eac/modules/users/students.nix:227:37:24 226| ];25 227| openssh.authorizedKeys.keys = peterKeys;26 | ^27 228| xrdpAccess = false;