final: _:
let
  mkQuartus = final.callPackage ./quartus.nix;
  mkQuartusPackages = builtins.mapAttrs (
    n: v:
    if builtins.isFunction v then
      args: mkQuartus { quartusSource = v args; }
    else
      mkQuartus { quartusSource = v; }
  );
  quartusSources = {
    lite = final.callPackage ./sources/lite.nix { };
    standard = final.callPackage ./sources/standard.nix { };
    pro = final.callPackage ./sources/pro.nix { };
  };
  quartusPackages = (mkQuartus { quartusSource = quartusSources.lite.latest; }).overrideAttrs (
    finalAttrs: prevAttrs: {
      passthru = prevAttrs.passthru // (builtins.mapAttrs (n: v: mkQuartusPackages v) quartusSources);
    }
  );
in
{
  inherit quartusPackages;
  quartus-prime-pro = quartusPackages.pro.latest;
  quartus-prime-standard = quartusPackages.standard.latest;
}