{ config, lib, pkgs, ... }:

{
  # install stellarium for target finding and siril for stacking
  environment.systemPackages = with pkgs; [
    stellarium
    siril
  ];

  # StarNet++ has no nixpkgs package. Download the StarNet v2 ORT CLI build
  # (starnet2_linux_*_ORT_x64_cli) from https://www.starnetastro.com/download/
  # and unzip it to ~/.local/share/siril/starnet/. Then in Siril set
  #   Preferences -> Miscellaneous -> StarNet executable
  # to the extracted ./starnet2 binary.
  #
  # The binary is a generic dynamically-linked ELF, so NixOS needs nix-ld to
  # run it. Its own opencv/onnxruntime libs are found via the bundled ./lib.
  programs.nix-ld.enable = true;
  programs.nix-ld.libraries = with pkgs; [
    stdenv.cc.cc.lib   # libstdc++ / libgcc_s
    zlib
  ];
}