let

  sources = import ./nix/sources.nix;

  nixpkgs = sources.nixpkgs;

  pkgs = import nixpkgs { };

in
pkgs.mkShell rec {

  name = "nixfiles-shell";

  buildInputs = with pkgs; [
    niv
    deploy-rs
    (pkgs.callPackage "${sources.agenix}/pkgs/agenix.nix" { })
    (import sources.home-manager { inherit pkgs; }).home-manager
  ];

  shellHook = ''
    export HOST=$(hostname)
    export NIX_PATH="nixpkgs=${nixpkgs}:home-manager=${sources."home-manager"}:darwin=${sources.nix-darwin}:darwin-config=$PWD/system/$HOST.nix:private=$PWD/private:nixpkgs-overlays=$PWD/overlays:nix-index-database=${sources.nix-index-database}";
    export HOME_MANAGER_CONFIG="./user/$HOST.nix"
  '';

}