{
  description = "Proj BE PI3D";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let pkgs = nixpkgs.legacyPackages.${system};
      in {
        devShell = pkgs.mkShell {
          buildInputs = with pkgs; [
            tk
            poetry
            python3
            python310Packages.numpy
            python310Packages.datasets
            python310Packages.matplotlib
          ];
        };
      });
}