newer nixops

shell.nix

let
  overlay = self: super:
  {
    nixops = super.nixopsUnstable.overrideAttrs (_: rec {
      version = "1.8-unstable";
      src = fetchTarball {
        url = https://github.com/asymmetric/nixops/archive/hetzner-cloud.tar.gz;
        sha256 = "0xdaxpaalggbcsbn5r4n7svl59ycrfpy2cgfjgvkxf75i6vr6x47";
      };
    });
  };

  pkgs' = fetchTarball {
    url = https://github.com/nixos/nixpkgs-channels/archive/nixos-19.03.tar.gz;
    sha256 = "16nryjvfaw2dq55yp34hcw5bz8nlidhdi3yvr2ilr7lrlm4k54p1";
  };
  pkgs = (import pkgs' { overlays = [ overlay ]; });

in
  pkgs.stdenv.mkDerivation rec {
    name = "nixops-env";
    buildInputs = with pkgs; [ nixops ];
  }