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 `settings.formatter':

       … while evaluating definitions from `/nix/store/v3ffcmq1yabry0kxrxs7pj7alwd3prfm-source/programs/sqlfluff.nix':

       … while evaluating the option `programs.sqlfluff.configFile':

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

       error: A definition for option `programs.sqlfluff.configFile' is not of type `absolute path'. Definition values:
       - In `/nix/store/v3ffcmq1yabry0kxrxs7pj7alwd3prfm-source/programs/sqlfluff.nix': null