Neovim plugin when installed with Nix is missing documentation

[cideM]

If I install the plugin through Home Manager like so

{
    programs.neovim.configure = {
      customRC = builtins.readFile ./init.vim;

      packages.n = {
        start = [ pkgs.parinfer-rust ];

        opt = [ ];
      };
    };
}

Then the plugin itself works but it doesn't have documentation nor helptags.

If I install it like this

          (pkgs.vimUtils.buildVimPluginFrom2Nix rec {
            pname = "parinfer";
            version = "latest";
            postInstall = ''
              rtpPath=$out/share/vim-plugins/${pname}-${version}
              mkdir -p $rtpPath/plugin
              sed "s,let s:libdir = .*,let s:libdir = '${pkgs.parinfer-rust}/lib'," \
                plugin/parinfer.vim >$rtpPath/plugin/parinfer.vim
            '';
            src = sources.parinfer;
          })

then everything works, but I need to replicate the postInstall hook so it properly adjusts the path based on my pname and version.

Here is how Nixpkgs installs vim plugins. I think it would make sense if this repository (parinfer) and its Nix package wouldn't change anything related to Vim. Because right now simply having parinfer-rust installed through Nixpkgs will affect the Vim runtime path.

Instead there should be a vim plugin in Nixpkgs which properly adjusts the path and has a dependency on parinfer-rust. Then people could just use the first way of installing the Vim plugin (top of this issue), and they'd get parinfer-rust as well, if it's specified as buildInputs (I assume that's the correct dep attribute, not entirely sure).

I'd imagine that if I create a Vim plugin in Nixpkgs now then it would probably conflict with parinfer-rust since both would try to change the same path in vim-plugins