We nixing now boys

nixos/ares/configuration.nix

@@ -90,7 +90,7 @@
     vim
     tailscale
     python3
-    disko
+    htop
   ];
   nixpkgs.config.allowUnfree = true;
 
@@ -124,6 +124,7 @@
     };
   };
 
+  nix.settings.trusted-users = [ "ares" ];
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
   # networking.firewall.allowedUDPPorts = [ ... ];

nixos/deploy.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-nixos-rebuild --impure --flake $(pwd)/$2#$2  --target-host $2@$1 --fast  --use-remote-sudo switch
+nixos-rebuild --impure --flake $(pwd)/$2#$2  --target-host $2@$1 --fast  --use-remote-sudo switch 
 
 

nixos/hades/configuration.nix

@@ -0,0 +1,168 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "hades";
+  # networking.hostName = "nixos"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  # time.timeZone = "Europe/Amsterdam";
+  # Enable networking
+  networking.networkmanager.enable = true;
+  networking.defaultGateway.address = "192.168.1.1";
+  networking.interfaces.enp1s0.ipv4.addresses = [{
+    address = "192.168.1.22";
+    prefixLength = 24;
+  }];
+  networking.nameservers = [ "192.168.1.69" "1.1.1.1" ];
+  # Set your time zone.
+  time.timeZone = "Europe/Oslo";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkb.options in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+  # Configure console keymap
+  console.keyMap = "no";
+  
+
+  # Configure keymap in X11
+  # services.xserver.xkb.layout = "us";
+  # services.xserver.xkb.options = "eurosign:e,caps:escape";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # hardware.pulseaudio.enable = true;
+  # OR
+  # services.pipewire = {
+  #   enable = true;
+  #   pulse.enable = true;
+  # };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.libinput.enable = true;
+
+  security.sudo.wheelNeedsPassword = false;
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.hades = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    openssh.authorizedKeys.keys = [
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBDpeouwzFZoYA7AYARaJ/qdQHORJB2h1V73PXQYEAI7sDrc3kYwgZPbrZ3pGkGKaHBl45kiV6SYsC7191OCwIl8AAAAEc3NoOg== A"
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBHlAtX4mBifZZ8u6sJckCgA6skwN7aamVK+lQuXLQ6kQWJy7GlEXEmoR9RW/0UIrQYLC+wd8Q5MROkYpn+cHLSoAAAAEc3NoOg== B"
+    ];
+    packages = with pkgs; [
+    ];
+  };
+  users.users.ansible = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    openssh.authorizedKeys.keys = [
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBDpeouwzFZoYA7AYARaJ/qdQHORJB2h1V73PXQYEAI7sDrc3kYwgZPbrZ3pGkGKaHBl45kiV6SYsC7191OCwIl8AAAAEc3NoOg== A"
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBHlAtX4mBifZZ8u6sJckCgA6skwN7aamVK+lQuXLQ6kQWJy7GlEXEmoR9RW/0UIrQYLC+wd8Q5MROkYpn+cHLSoAAAAEc3NoOg== B"
+    ];
+    packages = with pkgs; [
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    btop
+    vim
+    tailscale
+    python3
+  ];
+  nixpkgs.config.allowUnfree = true;
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  # programs.firefox.enable = true;
+  services.tailscale.enable = true;
+  # Enable the OpenSSH daemon.
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  # environment.systemPackages = with pkgs; [
+  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+  #   wget
+  # ];
+
+  # 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;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = true;
+    };
+  };
+
+  nix.settings.trusted-users = [ "hades" ];
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "24.11"; # Did you read the comment?
+
+}
+

nixos/hades/disko-config.nix

@@ -0,0 +1,65 @@
+{
+  disko.devices = {
+    disk = {
+      disk0 = {
+        type = "disk";
+        device = "/dev/sda";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              name = "ESP";
+              start = "1M";
+              end = "128M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ]; # Override existing partition
+                # Subvolumes must set a mountpoint in order to be mounted,
+                # unless their parent is mounted
+                mountpoint = "/";
+                mountOptions = [
+                  "compress=zstd"
+                  "noatime"
+                ];
+              };
+            };
+          };
+        };
+      };
+      disk1 = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            root = {
+              size = "100%";
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ]; # Override existing partition
+                # Subvolumes must set a mountpoint in order to be mounted,
+                # unless their parent is mounted
+                mountpoint = "/mnt/data";
+                mountOptions = [
+                  "compress=zstd"
+                  "noatime"
+                ];
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

nixos/hades/flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1746728054,
+        "narHash": "sha256-eDoSOhxGEm2PykZFa/x9QG5eTH0MJdiJ9aR00VAofXE=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "ff442f5d1425feb86344c028298548024f21256d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "latest",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1747676747,
+        "narHash": "sha256-LXkWBVqilgx7Pohwqu/ABxDVw+Cmi5/Mj2S2mpUH0Fw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "72841a4a8761d1aed92ef6169a636872c986c76d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "disko": "disko",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nixos/hades/flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "A simple NixOS flake";
+
+  inputs = {
+    # NixOS official package source, using the nixos-24.11 branch here
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    disko = { 
+      url = "github:nix-community/disko/latest";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, disko, ... }@inputs: {
+    # Please replace my-nixos with your hostname
+    nixosConfigurations.hades = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        # Import the previous configuration.nix we used,
+        # so the old configuration file still takes effect
+        disko.nixosModules.disko
+        ./configuration.nix
+        ./disko-config.nix
+        ./hardware-configuration.nix
+      ];
+    };
+  };
+}

nixos/hades/hardware-configuration.nix

@@ -0,0 +1,25 @@
+# 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" "ehci_pci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  # 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.enp1s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

nixos/hermes/configuration.nix

@@ -90,7 +90,6 @@
     vim
     tailscale
     python3
-    disko
   ];
   nixpkgs.config.allowUnfree = true;
 
@@ -124,6 +123,7 @@
     };
   };
 
+  nix.settings.trusted-users = [ "hermes" ];
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
   # networking.firewall.allowedUDPPorts = [ ... ];

nixos/poseidon/configuration.nix

@@ -0,0 +1,159 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "poseidon";
+  # networking.hostName = "nixos"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  # time.timeZone = "Europe/Amsterdam";
+  # Enable networking
+  networking.networkmanager.enable = true;
+  networking.defaultGateway.address = "192.168.1.1";
+  networking.interfaces.enp1s0.ipv4.addresses = [{
+    address = "192.168.1.21";
+    prefixLength = 24;
+  }];
+  networking.nameservers = [ "192.168.1.69" "1.1.1.1" ];
+  # Set your time zone.
+  time.timeZone = "Europe/Oslo";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkb.options in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+  # Configure console keymap
+  console.keyMap = "no";
+  
+
+  # Configure keymap in X11
+  # services.xserver.xkb.layout = "us";
+  # services.xserver.xkb.options = "eurosign:e,caps:escape";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # hardware.pulseaudio.enable = true;
+  # OR
+  # services.pipewire = {
+  #   enable = true;
+  #   pulse.enable = true;
+  # };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.libinput.enable = true;
+
+  security.sudo.wheelNeedsPassword = false;
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.poseidon = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    openssh.authorizedKeys.keys = [
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBDpeouwzFZoYA7AYARaJ/qdQHORJB2h1V73PXQYEAI7sDrc3kYwgZPbrZ3pGkGKaHBl45kiV6SYsC7191OCwIl8AAAAEc3NoOg== A"
+      "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBHlAtX4mBifZZ8u6sJckCgA6skwN7aamVK+lQuXLQ6kQWJy7GlEXEmoR9RW/0UIrQYLC+wd8Q5MROkYpn+cHLSoAAAAEc3NoOg== B"
+    ];
+    packages = with pkgs; [
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    btop
+    vim
+    tailscale
+    python3
+    htop
+  ];
+  nixpkgs.config.allowUnfree = true;
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  # programs.firefox.enable = true;
+  services.tailscale.enable = true;
+  # Enable the OpenSSH daemon.
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  # environment.systemPackages = with pkgs; [
+  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+  #   wget
+  # ];
+
+  # 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;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = true;
+    };
+  };
+
+  nix.settings.trusted-users = [ "poseidon" ];
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "24.11"; # Did you read the comment?
+
+}
+

nixos/poseidon/disko-config.nix

@@ -0,0 +1,65 @@
+{
+  disko.devices = {
+    disk = {
+      disk0 = {
+        type = "disk";
+        device = "/dev/sda";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              name = "ESP";
+              start = "1M";
+              end = "128M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            root = {
+              size = "100%";
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ]; # Override existing partition
+                # Subvolumes must set a mountpoint in order to be mounted,
+                # unless their parent is mounted
+                mountpoint = "/";
+                mountOptions = [
+                  "compress=zstd"
+                  "noatime"
+                ];
+              };
+            };
+          };
+        };
+      };
+      disk1 = {
+        type = "disk";
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            root = {
+              size = "100%";
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ]; # Override existing partition
+                # Subvolumes must set a mountpoint in order to be mounted,
+                # unless their parent is mounted
+                mountpoint = "/mnt/data";
+                mountOptions = [
+                  "compress=zstd"
+                  "noatime"
+                ];
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

nixos/poseidon/flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1746728054,
+        "narHash": "sha256-eDoSOhxGEm2PykZFa/x9QG5eTH0MJdiJ9aR00VAofXE=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "ff442f5d1425feb86344c028298548024f21256d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "latest",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1747676747,
+        "narHash": "sha256-LXkWBVqilgx7Pohwqu/ABxDVw+Cmi5/Mj2S2mpUH0Fw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "72841a4a8761d1aed92ef6169a636872c986c76d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "disko": "disko",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nixos/poseidon/flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "A simple NixOS flake";
+
+  inputs = {
+    # NixOS official package source, using the nixos-24.11 branch here
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    disko = { 
+      url = "github:nix-community/disko/latest";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, disko, ... }@inputs: {
+    # Please replace my-nixos with your hostname
+    nixosConfigurations.poseidon = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        # Import the previous configuration.nix we used,
+        # so the old configuration file still takes effect
+        disko.nixosModules.disko
+        ./configuration.nix
+        ./disko-config.nix
+        ./hardware-configuration.nix
+      ];
+    };
+  };
+}

nixos/poseidon/hardware-configuration.nix

@@ -0,0 +1,25 @@
+# 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" "ehci_pci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  # 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.enp1s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}