Seeking a kind soul --- Someone who can ELI5 (I can hardly read json). I have successfully deployed with templates 2 apps. But for UNSTRACT there is no template, so not clear on the process, and followed the UI --- and landed with this error:

installing '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'

error:
… while calling the 'derivationStrict' builtin
at :34:12:
33|
34| strict = derivationStrict drvAttrs;
| ^
35|

   … while evaluating derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
     whose name attribute is located at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/stdenv/generic/make-derivation.nix:300:7

   … while evaluating attribute 'passAsFile' of derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
     at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/build-support/trivial-builders/default.nix:88:7:
       87|       inherit buildCommand name;
       88|       passAsFile = [ "buildCommand" ]
         |       ^
       89|         ++ (derivationArgs.passAsFile or []);

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

   error: attribute 'dev' missing
   at /app/.nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix:19:13:
       18|         '')
       19|         gcc postgresql_[16.dev](16.dev) python39
         |             ^
       20|       ];
   Did you mean doc?

✕ [stage-0 4/8] RUN nix-env -if .nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix && nix-collect-garbage -d
process "/bin/bash -ol pipefail -c nix-env -if .nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix && nix-collect-garbage -d" did not complete successfully: exit code: 1
=================================

Looks like somewhere in the code the word DEV was used instead of DOC. But I have no idea how to access or fix that. Is that inside Railway? Or must I do something in GITHUB? I don't have a clue which file to access, how to access and what to do if I did access it. --- Anyone having a slow day, help will be appreciated :)

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