Difficult to find OCaml 5 via search

[GabrielDougherty]

There is a UX issue with finding OCaml 5 via NixOS Search. Ocaml 5 has been packaged as ocaml-ng.ocamlPackages_5_0. If I search for "ocaml," the first result is for OCaml 4.14.1 which is an old version. The latest version, 5.0.0 does not appear on the first or second page of search results. It also does not appear on the next few pages, nor does it appear when I search for "ocaml 5" or "ocaml 5_0" and so on.

Since the package is hard to find, it probably leads to folks thinking that the package does not exist. I only found it through this issue.

[ncfavier]

This needs fixing in nixpkgs first so that the package is actually exposed in the search, and then we can worry about making it float to the top of the results.

We could

• add a top-level ocaml_5 alias to ocaml-ng.ocamlPackages_5_0.ocaml
• add

    ocaml-ng = super.ocaml-ng // {
      ocamlPackages_latest = recurseIntoAttrs super.ocaml-ng.ocamlPackages_latest;
    };
  

  to pkgs/top-level/packages-config.nix

[GabrielDougherty]

Thanks - opened PR https://github.com/NixOS/nixpkgs/pull/220894