nix-configs/nixos-configurations/smolboi.nix

{
  pkgs,
  ezModules,
  inputs,
  modulesPath,
  lib,
  ...
}:

let
  pkgs-unstable = import inputs.nixunstable { inherit (pkgs.stdenv) system; };
in
{
  imports = [
    "${modulesPath}/installer/scan/not-detected.nix"
    inputs.stylix.nixosModules.stylix
    inputs.impermanence.nixosModules.impermanence
    inputs.nixos-hardware.nixosModules.common-cpu-amd
    inputs.nixos-hardware.nixosModules.common-cpu-amd-pstate
    inputs.nixos-hardware.nixosModules.common-cpu-amd-zenpower
    inputs.nixos-hardware.nixosModules.common-gpu-amd
    inputs.nixos-hardware.nixosModules.common-pc
    inputs.nixos-hardware.nixosModules.common-pc-ssd
    inputs.nixos-hardware.nixosModules.gigabyte-b550
    ezModules.aarch64-emu
    ezModules.smartd
    ezModules.plymouth
  ];

  boot = {
    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
    };
    binfmt.registrations.appimage = {
      wrapInterpreterInShell = false;
      interpreter = "${pkgs.appimage-run}/bin/appimage-run";
      recognitionType = "magic";
      offset = 0;
      mask = "\\xff\\xff\\xff\\xff\\x00\\x00\\x00\\x00\\xff\\xff\\xff";
      magicOrExtension = "\\x7fELF....AI\\x02";
    };
    tmp.cleanOnBoot = true;
    kernelModules = [ "kvm-amd" ];
    initrd.availableKernelModules = [
      "nvme"
      "xhci_pci"
      "ahci"
      "usb_storage"
      "usbhid"
      "sd_mod"
    ];
  };

  networking = {
    hostName = "smolboi"; # Define your hostname.
    networkmanager.enable = true; # Easiest to use and most distros use this by default.
    firewall.allowedTCPPorts = [ 22000 ];
    useDHCP = lib.mkDefault true;
  };
  nixpkgs = {
    config = {
      allowUnfree = true;
      permittedInsecurePackages = [ "electron-25.9.0" ];
      packageOverrides = pkgs: {
        steam = pkgs.steam.override { extraPkgs = pkgs: [ pkgs.winetricks ]; };
      };
    };
    hostPlatform = lib.mkDefault "x86_64-linux";
  };

  services = {
    ratbagd.enable = true;
    displayManager = {
      autoLogin.user = "cdombroski";
      sddm = {
        enable = true;
        autoNumlock = true;
        wayland.enable = true;
      };
    };
    desktopManager.plasma6.enable = true;

    printing = {
      enable = true;
      drivers = [ pkgs.gutenprint ];
    };
    avahi = {
      enable = true;
      nssmdns4 = true;
      nssmdns6 = true;
      openFirewall = true;
    };
    printing.cups-pdf.enable = true;
    pipewire = {
      enable = true;
      alsa.enable = true;
      alsa.support32Bit = true;
      pulse.enable = true;
    };
    hardware.openrgb.enable = true;
    resolved.enable = true;
    btrfs.autoScrub = {
      enable = true;
      fileSystems = [
        "/"
        "/home"
      ];
    };
  };
  hardware = {
    sane = {
      enable = true;
      extraBackends = [ pkgs.sane-airscan ];
    };
    bluetooth.enable = true;
  };

  security = {
    rtkit.enable = true;
  };

  environment = {
    systemPackages =
      builtins.attrValues {
        inherit (pkgs)
          vim-full
          libreoffice-qt
          firefox
          syncthing
          chromium
          skanlite
          htop
          kate
          cifs-utils
          tio
          p7zip
          rar
          piper
          element-desktop
          discord
          openrgb-with-all-plugins
          keepassxc
          heroic
          r2modman
          mangohud
          hack-font
          jellyfin-media-player
          konversation
          nixd
          yakuake
          mgba
          vlc
          dolphin-emu-primehack
          steamtinkerlaunch
          lutris
          knossosnet
          lilypond
          musescore
          protontricks
          protonup-qt
          ;
        inherit (pkgs-unstable.jetbrains) idea-community;
      }
      ++ [
        (pkgs.retroarch.override {
          cores = builtins.attrValues {
            inherit (pkgs.libretro)
              beetle-psx-hw
              pcsx2
              mesen
              bsnes
              parallel-n64
              dolphin
              sameboy
              citra
              gpsp
              desmume
              fbneo
              nxengine
              mgba
              ;
          };
        })
      ];
    persistence."/persist" = {
      hideMounts = true;
      directories = [
        "/etc/NetworkManager/system-connections"
        "/var/lib/bluetooth"
        "/var/lib/nixos"
        "/var/log"
        "/var/lib/systemd"
        "/tmp"
        "/var/lib/cups"
      ];
      files = [
        "/etc/machine-id"
        "/var/lib/NetworkManager/secret_key"
        "/etc/adjtime"
        "/etc/ssh/ssh_host_rsa_key"
        "/etc/ssh/ssh_host_rsa_key.pub"
        "/etc/ssh/ssh_host_ed25519_key"
        "/etc/ssh/ssh_host_ed25519_key.pub"
      ];
    };
  };

  programs = {
    gnupg.agent = {
      enable = true;
      enableSSHSupport = true;
    };

    steam = {
      enable = true;
      remotePlay.openFirewall = true;
      gamescopeSession.enable = true;
    };
    firefox.nativeMessagingHosts.packages = [
      pkgs.keepassxc
      pkgs.kdePackages.plasma-browser-integration
    ];
    gamemode = {
      enable = true;
      settings = {
        general = {
          reaper_freq = 5;
          desiredgov = "performance";
          softrealtime = "auto";
        };
        gpu = {
          apply_gpu_optimisations = "accept-responsibility";
          gpu_device = 0;
          amd_performance_level = "high";
        };
      };
    };
    gamescope.enable = true;
  };
  zramSwap = {
    enable = true;
    writebackDevice = "/dev/disk/by-partuuid/e8f5eaf8-46ca-40de-854a-f6dfe964b92d";
  };

  fileSystems = {
    "/" = {
      device = "none";
      fsType = "tmpfs";
      options = [
        "defaults"
        "size=2g"
        "mode=755"
      ];
    };
    "/persist" = {
      device = "/dev/disk/by-uuid/d0eb1b09-7fba-49e3-b802-d6fdd9073516";
      neededForBoot = true;
      fsType = "btrfs";
      options = [
        "subvol=@nixos/root"
        "compress=lzo"
        "autodefrag"
        "discard=async"
        "defaults"
      ];
    };
    "/nix" = {
      device = "/dev/disk/by-uuid/d0eb1b09-7fba-49e3-b802-d6fdd9073516";
      fsType = "btrfs";
      options = [
        "subvol=@nixos/nix"
        "compress=lzo"
        "autodefrag"
        "discard=async"
        "noatime"
        "defaults"
      ];
    };
    "/steam-library" = {
      device = "/dev/disk/by-uuid/d0eb1b09-7fba-49e3-b802-d6fdd9073516";
      fsType = "btrfs";
      options = [
        "subvol=@steam-library"
        "compress=lzo"
        "autodefrag"
        "discard=async"
        "defaults"
      ];
    };
    "/home" = {
      device = "/dev/disk/by-uuid/8597952f-be42-4361-9be1-2c4af6ede9b8";
      fsType = "btrfs";
      options = [
        "subvol=@home"
        "compress=lzo"
        "autodefrag"
        "discard=async"
        "defaults"
      ];
    };
    "/boot" = {
      device = "/dev/disk/by-uuid/1ADE-808D";
      fsType = "vfat";
    };
  };

  stylix = {
    image = "${pkgs.kdePackages.breeze}/share/wallpapers/Next/contents/images_dark/2560x1440.png";
    base16Scheme = "${pkgs.base16-schemes}/share/themes/solarflare.yaml";
    fonts = {
      serif = {
        package = pkgs.noto-fonts;
        name = "Noto Serif";
      };
      sansSerif = {
        package = pkgs.noto-fonts;
        name = "Noto Sans";
      };
      monospace = {
        package = pkgs.jetbrains-mono;
        name = "JetBrains Mono Regular";
      };
    };
    cursor = {
      package = pkgs.kdePackages.breeze;
      name = "breeze_cursors";
      size = 24;
    };
  };

  system.stateVersion = "23.11"; # Did you read the comment?
}