Describe the bug

Some packages, e.g. grammarly-languageserver requires nodejs_16 (znck/grammarly#334), but I cannot override the nodejs version of the package to nodejs_16 because it is EOF.

Steps To Reproduce

Steps to reproduce the behavior:

1. Override nodejs version of some nodejs package by doing

   (nodePackages_latest.grammarly-languageserver.overrideAttrs (old: {
     nodejs = pkgs.nodejs-16_x;
   }))

2. See the error message.

Expected behavior

Allow forcing the use of EOL packages, or maybe officially state that this is not supported and mark the package as broken.

Screenshots

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Additional context

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Notify maintainers

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
output here

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