warning: Path '/home/synchronous/nix-cfg/flake.nix' should point at the directory containing the 'flake.nix' file, not the file itself. Pretending that you meant '/home/synchronous/nix-cfg'
warning: Git tree '/home/synchronous/nix-cfg' is dirty
error:
       … while calling the 'seq' builtin
         at /nix/store/6zgbbqlr7nnfxpzkyj7fsl4fpg89jbw0-source/lib/modules.nix:334:18:
          333|         options = checked options;
          334|         config = checked (removeAttrs config [ "_module" ]);
             |                  ^
          335|         _module = checked (config._module);

       … while evaluating a branch condition
         at /nix/store/6zgbbqlr7nnfxpzkyj7fsl4fpg89jbw0-source/lib/modules.nix:273:9:
          272|       checkUnmatched =
          273|         if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [] then
             |         ^
          274|           let

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

       error: syntax error, unexpected ';'
       at /nix/store/f06nazkwk5a29vz793alp0zppviacn27-source/configuration.nix:142:7:
          141|       }
          142|     ];;;
             |       ^
          143|   };