{ config, lib, pkgs, inputs, ... }: {

    imports = [
        ./hardware-configuration.nix
      
        inputs.disko.nixosModules.default
      
        (import ./disko.nix { device1 = "/dev/mmcblk0"; })
        
        inputs.home-manager.nixosModules.default
        
        inputs.sops-nix.nixosModules.sops
    ];

    config = {

        sysconfig.opts = {
            openssh.enable = true;
            #pipewire.enable = true;
            git.enable = true;
            nh.enable = true;
            netbird.enable = true;
        };

        home-manager = {
            backupFileExtension = "backup";
            extraSpecialArgs = { inherit inputs; };
            sharedModules = [ inputs.sops-nix.homeManagerModules.sops ];
            users = {
                "nathan" = lib.mkMerge [
                    {
                        config.homeconfig = {
                            homeScripts.enable = false;
                            minimal = true;
                            mpd.enable = true;
                        };
                    }
                    inputs.nathan-home-manager
                ];
            };
        };

        boot = {
            loader = {
                grub.enable = false;
                generic-extlinux-compatible.enable = true;
            };
        };

        networking = {
            hostName = "pi4";
            nameservers = [ "1.1.1.1" "1.0.0.1" ];
            networkmanager.enable = true;
        };

        time.timeZone = "America/Chicago";
        
        i18n.defaultLocale = "en_US.UTF-8";

        i18n.extraLocaleSettings = {
            LC_ADDRESS = "en_US.UTF-8";
            LC_IDENTIFICATION = "en_US.UTF-8";
            LC_MEASUREMENT = "en_US.UTF-8";
            LC_MONETARY = "en_US.UTF-8";
            LC_NAME = "en_US.UTF-8";
            LC_NUMERIC = "en_US.UTF-8";
            LC_PAPER = "en_US.UTF-8";
            LC_TELEPHONE = "en_US.UTF-8";
            LC_TIME = "en_US.UTF-8";
        };

        hardware = {
            bluetooth.enable = true;

        };

        programs.zsh.enable = true;
        
        environment.shells = with pkgs; [ zsh ];
        
        users = { 
            defaultUserShell = pkgs.zsh;

            groups.gpio = {};

            users = {
                nathan = {
                    isNormalUser = true;
                    description = "Nathan";
                    initialPassword = "7567";
                    extraGroups = [
                        "wheel"
                            "networkmanager"
                            "gpio"
                            "spi"
                            "audio"
                            "pulse"
                            "pulse-access"
                    ];
                };
            };
        };

        services = {
            udev.extraRules = ''
            '';

            pulseaudio = {
                enable = true;
                extraConfig = ''
                '';
            };

            services.avahi = {

                enable = true;
                ipv4 = true;
                ipv6 = true;
                openFirewall = true;
                nssmdns4 = true;
                wideArea = true;

            };
        };

        nix = {
            nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
            settings = {
                experimental-features = [ "nix-command" "flakes" ];
            };
        };

        sops = {
            age.keyFile = "/home/nathan/.config/sops/age/keys.txt";
            defaultSopsFile = ./secrets.yaml;
            defaultSopsFormat = "yaml";
        };

       

        fonts.packages = with pkgs; [ nerd-fonts.fira-code ];

        sound.enable = true;

        security.rtkit.enable = true;

        system.stateVersion = "25.05";
    };
}