Haskell environment with mkShell

cicd-shell.nix

{ mkDerivation, aeson, ascii-progress, async, base
, concurrent-output, dhall, directory, filepath, haskeline, lens
, neat-interpolation, optparse-applicative, prettyprinter
, prettyprinter-ansi-terminal, process, protolude, raw-strings-qq
, req, stdenv, tasty, tasty-discover, tasty-golden, tasty-hunit
, text, transformers, turtle
}:
mkDerivation {
  pname = "cicd-shell";
  version = "2.7.1";
  src = ./.;
  isLibrary = true;
  isExecutable = true;
  enableSeparateDataOutput = true;
  libraryHaskellDepends = [
    aeson base concurrent-output dhall directory filepath haskeline
    lens neat-interpolation optparse-applicative prettyprinter
    prettyprinter-ansi-terminal process protolude raw-strings-qq req
    text transformers
  ];
  executableHaskellDepends = [
    ascii-progress async base directory lens text turtle
  ];
  testHaskellDepends = [
    base filepath tasty tasty-discover tasty-golden tasty-hunit text
  ];
  testToolDepends = [ tasty-discover ];
  homepage = "ssh://[email protected]:7999/cicd/salt-shell.git";
  description = "Command line tool that interfaces cicd services";
  license = stdenv.lib.licenses.bsd3;
}

gistfile1.txt

{ 
  nixpkgs ? (import ./nix/sources.nix).nixpkgs
}:
let
  pkgs = import nixpkgs {};
  cicd-shell = pkgs.haskellPackages.callPackage ./cicd-shell.nix {};
in
{
  inherit cicd-shell;
}

shell.nix

  let
  nixpkgs = (import ./nix/sources.nix).nixpkgs;
  pkgs = import nixpkgs {};
in pkgs.mkShell {
  buildInputs = [
    pkgs.zlib.dev
    pkgs.zlib.out
    pkgs.ghc
    # WHAT DO I NEED HERE ? (import ./release.nix {inherit nixpkgs;}).cicd-shell.env.nativeBuildInputs
  ];
}

solution.nix

let
  nixpkgs = (import ./nix/sources.nix).nixpkgs;
  pkgs = import nixpkgs {};
  ghcEnv = pkgs.haskellPackages.ghcWithPackages (hpkgs: (import ./release.nix {inherit nixpkgs;}).cicd-shell.propagatedBuildInputs);                                                                                                          
in pkgs.mkShell {
  buildInputs = [
    pkgs.zlib.dev
    pkgs.zlib.out
    ghcEnv
    ];
}