nixos/pkgs/helix/package.nix

{
  inputs,
  system,
  callPackage,
  symlinkJoin,
  makeWrapper,
  lib,
}:
let
  inherit (inputs.helix.packages."${system}") helix;
  helixWithPassthru = helix // {
    passthru = helix.passthru // {
      languages = lib.pipe "${helix.src}/languages.toml" [
        builtins.readFile
        builtins.fromTOML
      ];
    };
  };
  runtime = callPackage ./runtime.nix { };
in
symlinkJoin {
  name = "helix-wrapped";
  paths = [ helixWithPassthru ];
  inherit (helixWithPassthru) meta;
  buildInputs = [
    makeWrapper
  ];
  postBuild = ''
    wrapProgram $out/bin/hx \
    --set HELIX_RUNTIME ${runtime}
  '';
  passthru = helixWithPassthru.passthru // {
    helix-unwrapped = helixWithPassthru;
  };
}