added leviathan and elise

systems/leviathan/default.nix

@@ -0,0 +1,27 @@
+{ inputs, ... }:
+{
+  imports = [
+    ../../users/elise
+    ../../users/richie
+    ../../common/global
+    ../../common/optional/desktop.nix
+    ../../common/optional/steam.nix
+    ../../common/optional/systemd-boot.nix
+    ../../common/optional/update.nix
+    ./hardware.nix
+    inputs.nixos-hardware.nixosModules.framework-13-7040-amd
+  ];
+
+  networking = {
+    hostName = "leviathan";
+    hostId = "cb9b64d8";
+    firewall.enable = true;
+    networkmanager.enable = true;
+  };
+
+  services = {
+    openssh.ports = [ 332 ];
+  };
+
+  system.stateVersion = "25.05";
+}

systems/leviathan/hardware.nix

@@ -0,0 +1,69 @@
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot = {
+    initrd = {
+      availableKernelModules = [
+        "ahci"
+        "ehci_pci"
+        "nvme"
+        "sd_mod"
+        "usb_storage"
+        "usbhid"
+        "xhci_pci"
+      ];
+      kernelModules = [ ];
+      luks.devices."luks-root-pool-nvme-Samsung_SSD_970_EVO_Plus_1TB_S6S1NS0T617615W-part2" = {
+        device = "/dev/disk/by-id/nvme-Samsung_SSD_970_EVO_Plus_1TB_S6S1NS0T617615W-part2";
+        bypassWorkqueues = true;
+        allowDiscards = true;
+      };
+    };
+    kernelModules = [ "kvm-amd" ];
+    extraModulePackages = [ ];
+  };
+
+  fileSystems = {
+    "/" = lib.mkDefault {
+      device = "root_pool/root";
+      fsType = "zfs";
+    };
+
+    "/home" = {
+      device = "root_pool/home";
+      fsType = "zfs";
+    };
+
+    "/var" = {
+      device = "root_pool/var";
+      fsType = "zfs";
+    };
+
+    "/nix" = {
+      device = "root_pool/nix";
+      fsType = "zfs";
+    };
+
+    "/boot" = {
+      device = "/dev/disk/by-uuid/12CE-A600";
+      fsType = "vfat";
+      options = [
+        "fmask=0077"
+        "dmask=0077"
+      ];
+    };
+  };
+
+  swapDevices = [ ];
+
+  networking.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}