{
  inputs = {
    nixpkgs = {
      url = "github:NixOS/nixpkgs/nixos-22.05";
    };
    flake-utils = {
      url = "github:numtide/flake-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, ... }@inputs:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
      in
      {
        devShells.default =
          let
            python = pkgs.python310.withPackages (ps: with ps; [
              poetry
            ]);
          in
          pkgs.mkShell {
            buildInputs = [
              python
            ];
            shellHook = ''
              export POETRY_VIRTUALENVS_IN_PROJECT=true
              export PS1='\[\033[1;34m\][jtftp:\w]\$\[\033[0m\] '
            '';
          };
        packages = {
          jtftp = pkgs.poetry2nix.mkPoetryApplication {
            python = pkgs.python310;
            projectDir = ./.;
          };
          default = self.packages.${system}.jtftp;
        };
        apps = {
          default = {
            type = "app";
            program = "${self.packages.${system}.jtftp}/bin/serve";
          };
        };
      }
    );
}