dev-templates/python/flake.nix

{
  description = "A Nix-flake-based Python development environment";

  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";

  outputs =
    { self
    , nixpkgs
    ,
    }:
    let
      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forEachSupportedSystem = f:
        nixpkgs.lib.genAttrs supportedSystems (system:
          f {
            pkgs = import nixpkgs { inherit system; };
          });
    in
    {
      devShells = forEachSupportedSystem ({ pkgs }: {
        default = pkgs.mkShell {
          packages = with pkgs;
            [ python312 virtualenv ]
            ++ (with pkgs.python312Packages; [ pip ]);
        };
      });
    };
}