{
  description = "we say NO to shitty OSes";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-23.05";
    nixpkgs-unstable.url = "nixpkgs/nixos-unstable";
    nixos-hardware.url = "nixos-hardware";
  };

  outputs = { nixpkgs, nixos-hardware, nixpkgs-unstable, ... }:
    let
      system-x86 = "x86_64-linux";
      overlay-unstable = final: prev: {
        unstable = import nixpkgs-unstable {
          inherit system-x86;
          config.allowUnfree = true;
        };
      };
      system-arm64 = "aarch64-linux";
      overlay-unstable-arm = final: prev: {
        unstable = import nixpkgs-unstable {
          inherit system-arm64;
          config.allowUnfree = true;
        };
      };
      nixosSystem = (systemModules: nixpkgs.lib.nixosSystem { modules = systemModules; });
      nixos-hw = nixos-hardware.nixosModules;
    in
    {
      nixosConfigurations = {
        NOcomputer = nixosSystem [
          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
          nixos-hw.common-cpu-amd
          nixos-hw.common-gpu-nvidia-nonprime
          ./systems/BASED.nix
          ./systems/NOcomputer.nix
          ./users/tao.nix
          ./extras/uwuraid.nix
          ./extras/dev.nix
          ./extras/gaming.nix
        ];
        NOlaptop = nixosSystem [
          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
          nixos-hw.common-cpu-intel
          # inputs.nixos-hardware.nixosModules.framework
          ./systems/BASED.nix
          ./systems/NOlaptop.nix
          ./users/tao.nix
          ./extras/uwuraid.nix
          ./extras/dev.nix
          ./extras/gaming.nix
        ];
        NObangers = nixosSystem [
          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable-arm ]; })
          nixos-hw.raspberry-pi-4
          ./systems/BASED.nix
          ./systems/NObangers.nix
          ./users/tao.nix
          ./extras/uwuraid.nix
        ];
      };
    };
}