{
  description = "Application packaged using poetry2nix";

  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  inputs.poetry2nix = {
    url = "github:nix-community/poetry2nix";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        # see https://github.com/nix-community/poetry2nix/tree/master#api for more functions and examples.
        inherit (poetry2nix.legacyPackages.${system}) mkPoetryApplication;
        inherit (poetry2nix.legacyPackages.${system}) mkPoetryEnv;
        pkgs = nixpkgs.legacyPackages.${system};
        # poetryOverrides = pkgs.poetry2nix.overrides.withDefaults 
        #   (self: super:
        #     let
        #       pyBuildPackages = self.python.pythonForBuild.pkgs;
        #     in
        #       {
        #       };
        #   );
        poetryEnv = mkPoetryEnv {
          projectDir = ./.;
          # overrides = poetryOverrides;
          preferWheels = true;
        };
      in
      {
        packages = {
          myapp = mkPoetryApplication { projectDir = self; };
          default = self.packages.${system}.myapp;
        };

        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            poetryEnv
            python310Packages.pandas
            # python310Packages.scrapy # hopefully 2.7.1 synced with poetry
          ];
          packages = [
            poetry2nix.packages.${system}.poetry
            pkgs.age
            pkgs.sops
            pkgs.sqlitebrowser
          ];
          shellHook = ''
            LD_LIBRARY_PATH=${pkgs.lib.makeLibraryPath [ pkgs.stdenv.cc.cc.lib ]};
          '';
        };
      });
}