{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    astal-shell.url = "github:knoopx/astal-shell";
  };

  outputs = { nixpkgs, astal-shell, ... }: {
    nixosConfigurations.yourhostname = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        # Your other modules
        ({ pkgs, ... }: {
          # Add the overlay
          nixpkgs.overlays = [ astal-shell.overlays.default ];

          # Install the packages
          environment.systemPackages = with pkgs; [
            astal-shell
          ];
        })
      ];
    };
  };
}

{ inputs, pkgs, ... }: {
  imports = [ inputs.astal-shell.homeManagerModules.default ];

services.astal-shell = {
    enable = true;

    # Optional: configure display margins
    displays = {
      "LG HDR 4K" = [390 145];
      "DP-1" = [250 80];
    };

    # Optional: configure theme
    theme = {
      background = {
        primary = "rgba(30, 30, 46, 1.0)";
        secondary = "rgba(24, 24, 37, 1.0)";
      };
      text = {
        primary = "rgba(205, 214, 244, 1.0)";
        secondary = "rgba(186, 194, 222, 0.7)";
      };
      # ... other theme options
    };

    # Optional: use a different package
    package = pkgs.astal-shell;
  };

    # Optional: customize theme
    theme = {
      background = {
        primary = "rgba(30, 30, 46, 1.0)";
        secondary = "rgba(24, 24, 37, 1.0)";
      };
      # ... other theme options
    };

    # Optional: use a different package
    package = pkgs.astal-shell;
  };
}