flake.nix

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
    nixpkgs_master.url = "github:NixOS/nixpkgs/master";
    systems.url = "github:nix-systems/default";
    flake-utils.url = "github:numtide/flake-utils";
    flake-utils.inputs.systems.follows = "systems";
  };

  outputs = {
    self,
    nixpkgs,
    flake-utils,
    systems,
    ...
  } @ inputs:
    flake-utils.lib.eachDefaultSystem (
      system: let
        pkgs = import nixpkgs {
          system = system;
          config.allowUnfree = true;
        };
        
      in
        with pkgs; rec {
          callPackage = lib.callPackageWith (pkgs // packages // python3Packages);
          
          packages = {
              centrosome = callPackage ./nix/centrosome.nix {};
            };

          devShells = {
            default = let
              python_with_pkgs = (pkgs.python3.withPackages(pp: [
                packages.centrosome
                ]));
              in
              mkShell {
                packages = [
                  python_with_pkgs
                ];
                venvDir = "./.venv";
                postVenvCreation = ''
                  unset SOURCE_DATE_EPOCH
                '';
                postShellHook = ''
                  unset SOURCE_DATE_EPOCH
                '';
                shellHook = ''
                  runHook venvShellHook
                  export PYTHONPATH=${python_with_pkgs}/${python_with_pkgs.sitePackages}:$PYTHONPATH
                '';
              };
          };
        }
    );
}