{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    uv.url = "github:MisileLab/nixpkgs?rev=fc8245f8b056d2a26680ea12ffea37981f1681ce";
    nixpkgs-python.url = "github:cachix/nixpkgs-python";
    nixpkgs-python.inputs = {
      nixpkgs.follows = "nixpkgs";
    };
    systems.url = "github:nix-systems/default";
    devenv.url = "github:cachix/devenv";
    devenv.inputs.nixpkgs.follows = "nixpkgs";
  };

  nixConfig = {
    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs =
    {
      self,
      nixpkgs,
      devenv,
      systems,
      ...
    }@inputs:
    let
      forEachSystem = nixpkgs.lib.genAttrs (import systems);
    in
    {
      packages = forEachSystem (system: {
        devenv-up = self.devShells.${system}.default.config.procfileScript;
        devenv-test = self.devShells.${system}.default.config.test;
      });

      devShells = forEachSystem (
        system:
        let
          pkgs = nixpkgs.legacyPackages.${system};
          uvPkgs = inputs.uv.legacyPackages.${system};
        in
        {
          default = devenv.lib.mkShell {
            inherit inputs pkgs;
            modules = [
              {
                packages = with pkgs.python311Packages; [
                  ruff
                ];
                languages.python = {
                  enable = true;
                  version = "3.11";
                  uv = {
                    enable = true;
                    package = uvPkgs.uv;
                    sync = {
                      enable = true;
                      allExtras = true;
                    };
                  };
                };
              }
            ];
          };
        }
      );
    };
}