error:
       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating derivation 'treefmt-check'
         whose name attribute is located at «https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.917670%2Brev-c0b0e0fddf73fd517c3471e546c0df87a42d53f4/019b6761-6451-7ee6-81b7-aa86aeadaa56/source.tar.gz?narHash=sha256-coBu0ONtFzlwwVBzmjacUQwj3G%2BlybcZ1oeNSQkgC0M%3D»/pkgs/stdenv/generic/make-derivation.nix:541:13

       … while evaluating attribute 'buildCommand' of derivation 'treefmt-check'
         at «https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.917670%2Brev-c0b0e0fddf73fd517c3471e546c0df87a42d53f4/019b6761-6451-7ee6-81b7-aa86aeadaa56/source.tar.gz?narHash=sha256-coBu0ONtFzlwwVBzmjacUQwj3G%2BlybcZ1oeNSQkgC0M%3D»/pkgs/build-support/trivial-builders/default.nix:80:17:
           79|         enableParallelBuilding = true;
           80|         inherit buildCommand name;
             |                 ^
           81|         passAsFile = [ "buildCommand" ] ++ (derivationArgs.passAsFile or [ ]);

       error: attribute 'self' missing
       at «https://api.flakehub.com/f/pinned/ramblurr/nix-devenv/0.1.97%2Brev-400792d1da306cf865984d578aa1d0e5bfb30d58/019b6a6d-98e0-708b-91aa-d004e540b97a/source.tar.gz?narHash=sha256-pe3q5J6x7UBs/vJKFzge/ncPHu2lmNB6GA6yhEtkW84%3D»/flakelight-treefmt.nix:85:61:
           84|       formatter = mkForce wrapper;
           85|       checks.formatting = mkForce (pkgs: (build pkgs).check inputs.self);
             |                                                             ^
           86|     }