{
  description = "mailman3_webhook_archiver";

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

  outputs = { self, nixpkgs, utils }:
    utils.lib.eachDefaultSystem (system:
      let pkgs = nixpkgs.legacyPackages.${system};
      in {
        devShell =
          pkgs.mkShell { buildInputs = with pkgs; [ poetry python311 ]; };
      });
}