{ pkgs ? import sources.nixpkgs {
    overlays = [
      (import ./pkgs)
    ];
  }
, sources ? import ./nix/sources.nix
}:
let
  inherit (pkgs) haskellPackages;
in
{
  inherit (haskellPackages) sensors;
  shell = haskellPackages.shellFor {
    packages = _: haskellPackages: with haskellPackages; [ sensors ];
    buildInputs = [
      haskellPackages.cabal-install
      haskellPackages.ormolu
      pkgs.niv
    ];
    withHoogle = true;
  };
}