refactore directory structure

systems/kaladin/configuration.nix

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+{ config, pkgs, ... }:
+
+{
+  imports =
+    [
+      ./hardware-configuration.nix
+      ../../pkgs/base-packages.nix
+      ../../pkgs/desktop-packages.nix
+      ../../modules/emacs.nix
+      ../../modules/desktop.nix
+      ../../modules/base.nix
+    ];
+
+  networking.hostName = "kaladin"; # Define your hostname.
+
+  networking.interfaces.enp0s31f6.useDHCP = true;
+  networking.interfaces.wlp7s0.useDHCP = true;
+
+  # NVIDIA
+  # services.xserver.videoDrivers = [ "nvidia" ];
+  hardware = {
+    opengl = {
+      enable = true;
+      driSupport32Bit = true;
+      extraPackages = with pkgs; [
+        mesa.drivers
+        vaapiVdpau
+        libvdpau-va-gl
+      ];
+    };
+    # nvidia = {
+    #   package = config.boot.kernelPackages.nvidiaPackages.beta;
+    #   modesetting.enable = true;
+    #   powerManagement.enable = true;
+    # };
+  };
+
+  # services.xserver.screenSection = ''
+  # Option         "metamodes" "nvidia-auto-select +0+0 {ForceFullCompositionPipeline=On}"
+  # Option         "AllowIndirectGLXProtocol" "off"
+  # Option         "TripleBuffer" "on"
+  # '';
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.chris = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "networkmanager" "input" "no-internet" ]; # Enable ‘sudo’ for the user.
+  };
+
+  # virtualisation.waydroid.enable = true;
+
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+  };
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+
+  
+  # services.caddy = {
+  #   enable = true;
+  #   virtualHosts = {
+  #     "videosdani.tfcconnection.org".extraConfig = ''
+  #     reverse_proxy localhost:9000
+  #     '';
+  #   };
+  #   virtualHosts = {
+  #     "videosdani.tfcconnection.org:1935".extraConfig = ''
+  #     reverse_proxy localhost:1935
+  #     '';
+  #   };
+  # };
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.11"; # Did you read the comment?
+
+}

systems/kaladin/hardware-configuration.nix

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+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/9b5a1a62-0de6-4e07-a541-634736980d10";
+      fsType = "btrfs";
+      options = [ "subvol=@" "noatime" "ssd" "space_cache" "clear_cache" "compress=zstd" ];
+    };
+
+  fileSystems."/home" =
+    { device = "/dev/disk/by-uuid/9b5a1a62-0de6-4e07-a541-634736980d10";
+      fsType = "btrfs";
+      options = [ "subvol=@home" "noatime" "ssd" "space_cache" "clear_cache" "compress=zstd" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/9b5a1a62-0de6-4e07-a541-634736980d10";
+      fsType = "btrfs";
+      options = [ "subvol=@nix" "noatime" "ssd" "space_cache" "clear_cache" "compress=zstd" ];
+    };
+
+  fileSystems."/var/log" =
+    { device = "/dev/disk/by-uuid/9b5a1a62-0de6-4e07-a541-634736980d10";
+      fsType = "btrfs";
+      options = [ "subvol=@log" "noatime" "ssd" "space_cache" "clear_cache" "compress=zstd" ];
+    };
+
+  fileSystems."/run/media/chris/Storage" =
+    { device = "/dev/disk/by-uuid/4c7d4273-7b72-4aa8-8e1c-e281543d06cb";
+      fsType = "btrfs";
+      options = [ "noatime" "space_cache" "clear_cache" "compress=zstd" ];
+    };
+
+  fileSystems."/run/media/chris/backup" =
+    { device = "/dev/disk/by-uuid/4286b9ef-e8ed-49a0-9eec-91b8ee05b2cb";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/35A0-C1F1";
+      fsType = "vfat";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp7s0.useDHCP = lib.mkDefault true;
+
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}