let
pkgs = import ~/nixpkgs {};
ghc = pkgs.ghc.withPackages (ps: with ps; [
# Development
hdevtools ghc-mod
# Library deps
hnix typed-process base16-bytestring megaparsec
parser-combinators
]);
in pkgs.runCommand "nix-prefetch" {
buildInputs = [ghc];
NIX_GHC = "${ghc}/bin/ghc";
NIX_GHCPKG = "${ghc}/bin/ghc-pkg";
NIX_GHC_LIBDIR = "${ghc}/lib/ghc-${ghc.version}";
} ":"