default.nix

let
haskellNix=import(builtins.fetchTarballhttps://github.com/input-output-hk/haskell.nix/archive/master.tar.gz){};
nixpkgsSrc=haskellNix.sources.nixpkgs-1903;# has hsc2hs-0.68.4

hsc2hsOverlay=self: super: {
buildPackages=super.buildPackages//{
hsc2hs=super.haskellPackages.hsc2hs;
};
};

nixpkgsArgs=haskellNix.nixpkgsArgs//{
overlays=haskellNix.nixpkgsArgs.overlays++[hsc2hsOverlay];
};
in
{pkgs ? importnixpkgsSrcnixpkgsArgs
}:

pkgs.haskell-nix.stackProject{
src=pkgs.haskell-nix.haskellLib.cleanGit{
name="purescript-native";
src=./.;
};
}