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hosts/Equinox/default.nix

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+{ config, pkgs, inputs, ... }:
+
+let
+  hostname = "Equinox";
+in
+{
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+
+  # System version
+  system.stateVersion = "22.11";
+
+
+  # Import hardware configuration
+  imports = [
+    ../../modules/system.nix
+
+
+    inputs.nixos-hardware.nixosModules.dell-xps-15-9510
+    inputs.nixos-hardware.nixosModules.dell-xps-15-9510-nvidia
+    inputs.disko.nixosModules.disko
+    ./disko.nix
+  ];
+
+
+  # Set hostname and timezone
+  networking.hostName = hostname;
+
+
+  # Bootloader configuration
+  boot = {
+    kernelModules = [ "kvm-intel" ];
+    extraModulePackages = [ ];
+
+    initrd = {
+      kernelModules = [ ];
+      availableKernelModules = [
+        "xhci_pci"
+        "thunderbolt"
+        "vmd"
+        "nvme"
+        "usb_storage"
+        "sd_mod"
+        "rtsx_pci_sdmmc"
+      ];
+    };
+
+    loader = {
+      systemd-boot.enable = true;
+      efi = {
+        canTouchEfiVariables = true;
+      };
+    };
+  };
+
+
+}

hosts/Equinox/disko.nix

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+{
+  disko.devices = {
+    disk = {
+      nvme0n1 = {
+        type = "disk";
+        device = "/dev/vda";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "512M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [
+                  "defaults"
+                ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "crypted";
+                settings = {
+                  allowDiscards = true;
+                };
+                content = {
+                  type = "btrfs";
+                  extraArgs = [ "-f" ];
+                  subvolumes = {
+                    "/root" = {
+                      mountpoint = "/";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/home" = {
+                      mountpoint = "/home";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/nix" = {
+                      mountpoint = "/nix";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/swap" = {
+                      mountpoint = "/.swapvol";
+                      swap.swapfile.size = "40G";
+                    };
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/msi-rtx4090/default.nix

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+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [
+      ../../modules/system.nix
+      ../../modules/i3.nix
+
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader = {
+    efi = {
+      canTouchEfiVariables = true;
+      efiSysMountPoint = "/boot/efi"; # ← use the same mount point here.
+    };
+    systemd-boot.enable = true;
+  };
+
+  networking.hostName = "msi-rtx4090"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+  networking.defaultGateway = "192.168.5.201";
+
+  # for Nvidia GPU
+  services.xserver.videoDrivers = [ "nvidia" ];
+  hardware.opengl.enable = true;
+  hardware.nvidia = {
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+    modesetting.enable = true;
+  };
+
+  # 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 = "22.11"; # Did you read the comment?
+
+}
+
+

hosts/msi-rtx4090/hardware-configuration.nix

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+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [
+      (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "uas" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    {
+      device = "/dev/disk/by-uuid/9730ef67-577c-4dc9-8563-f431c1cf25fb";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot/efi" =
+    {
+      device = "/dev/disk/by-uuid/8DA9-86FF";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/5364261a-3ecc-4754-b114-ff44c529627e"; }];
+
+  # 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.enp5s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlo1.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

hosts/nixos-test/default.nix

@@ -0,0 +1,53 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [
+      ../../modules/system.nix
+      ../../modules/i3.nix
+
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader = {
+    # efi = {
+    #   canTouchEfiVariables = true;
+    #   efiSysMountPoint = "/boot/efi"; # ← use the same mount point here.
+    # };
+    grub = {
+      enable = true;
+      device = "/dev/sda"; #  "nodev"
+      efiSupport = false;
+      useOSProber = true;
+      #efiInstallAsRemovable = true; # in case canTouchEfiVariables doesn't work for your system
+    };
+  };
+
+  networking.hostName = "nixos-test"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+  networking.defaultGateway = "192.168.5.201";
+
+  # 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 = "22.11"; # Did you read the comment?
+
+}
+
+

hosts/nixos-test/hardware-configuration.nix

@@ -0,0 +1,34 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [
+      (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    {
+      device = "/dev/disk/by-uuid/b779eb19-e43d-4f07-a91f-eb08bd8e1202";
+      fsType = "ext4";
+    };
+
+  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.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}