diff --git a/flake.nix b/flake.nix
index 22b50a4..3176f82 100644
--- a/flake.nix
+++ b/flake.nix
@@ -118,6 +118,26 @@
           ];
         };
 
+        zephyrus = nixpkgs.lib.nixosSystem rec {
+          inherit system;
+          modules = [
+            ./zephyrus.nix
+
+            home-manager.nixosModule
+            self.nixosModules.home
+
+            {
+              nixpkgs.overlays = [
+                inputs.emacs-overlay.overlay
+
+                (self: super: {
+                  steam = self.unstable.steam;
+                })
+              ] ++ shared_overlays;
+            }
+          ];
+        };
+
       };
   } // inputs.flake-utils.lib.eachDefaultSystem (system: {
     packages =
diff --git a/hosts/zephyrus/default.nix b/hosts/zephyrus/default.nix
new file mode 100644
index 0000000..1f55c38
--- /dev/null
+++ b/hosts/zephyrus/default.nix
@@ -0,0 +1,63 @@
+# 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, lib, pkgs, ... }:
+let
+  secrets = config.my.secrets;
+in
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      ./home.nix
+    ];
+
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  services.btrfs = {
+    autoScrub = {
+      enable = true;
+      fileSystems = [ "/" ];
+    };
+  };
+
+  networking.hostName = "zephyrus"; # Define your hostname.
+  networking.domain = "alarsyo.net";
+
+  # Set your time zone.
+  time.timeZone = "Europe/Paris";
+
+  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
+  # Per-interface useDHCP will be mandatory in the future, so this generated config
+  # replicates the default behaviour.
+  networking.interfaces.enp0s31f6.useDHCP = true;
+  networking.interfaces.wlp0s20f3.useDHCP = true;
+
+  # List services that you want to enable:
+  my.services = {
+    tailscale.enable = true;
+
+    pipewire.enable = true;
+  };
+
+  services = {
+    xserver = {
+      enable = true;
+      windowManager.i3.enable = true;
+      layout = "fr";
+      xkbVariant = "us";
+      libinput.enable = true;
+    };
+  };
+  my.displayManager.sddm.enable = true;
+
+  hardware.bluetooth = {
+    enable = true;
+    powerOnBoot = false;
+  };
+}
diff --git a/hosts/zephyrus/hardware-configuration.nix b/hosts/zephyrus/hardware-configuration.nix
new file mode 100644
index 0000000..6808322
--- /dev/null
+++ b/hosts/zephyrus/hardware-configuration.nix
@@ -0,0 +1,44 @@
+# 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" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/6395cef1-c30b-450a-917c-cfb3c0380642";
+      fsType = "btrfs";
+      options = [ "subvol=@" "compress=zstd" "noatime" ];
+    };
+
+  boot.initrd.luks.devices."cryptroot".device = "/dev/disk/by-uuid/c59e7067-e33c-474c-9b8e-96d0e8f59297";
+
+  fileSystems."/home" =
+    { device = "/dev/disk/by-uuid/6395cef1-c30b-450a-917c-cfb3c0380642";
+      fsType = "btrfs";
+      options = [ "subvol=@home" "compress=zstd" "noatime" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/6395cef1-c30b-450a-917c-cfb3c0380642";
+      fsType = "btrfs";
+      options = [ "subvol=@nix" "compress=zstd" "noatime" ];
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/D9DA-F46C";
+      fsType = "vfat";
+    };
+
+  swapDevices = [ ];
+
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+}
diff --git a/hosts/zephyrus/home.nix b/hosts/zephyrus/home.nix
new file mode 100644
index 0000000..08f11ad
--- /dev/null
+++ b/hosts/zephyrus/home.nix
@@ -0,0 +1,26 @@
+{ config, pkgs, ... }:
+{
+  home-manager.users.alarsyo = {
+    # Keyboard settings & i3 settings
+    my.home.x.enable = true;
+    my.home.x.cursor.enable = true;
+    my.home.alacritty.enable = true;
+    my.home.emacs.enable = true;
+    my.home.tmux.enable = true;
+    my.home.starship.enable = false;
+    my.home.fish.enable = true;
+
+    my.theme = config.home-manager.users.alarsyo.my.themes.solarizedLight;
+
+    home.packages = with pkgs; [
+        # some websites only work there :(
+        chromium
+
+        # dev
+        rustup
+
+        unstable.beancount
+        unstable.fava
+    ];
+  };
+}
diff --git a/zephyrus.nix b/zephyrus.nix
new file mode 100644
index 0000000..45f0074
--- /dev/null
+++ b/zephyrus.nix
@@ -0,0 +1,28 @@
+{ ... }:
+{
+  imports = [
+    # Default configuration
+    ./base
+    ./base/gui-programs.nix
+
+    # Module definitions
+    ./modules
+
+    # Service definitions
+    ./services
+
+    # Configuration secrets
+    ./secrets
+
+    # Host-specific config
+    ./hosts/zephyrus
+  ];
+
+  # 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 = "21.05"; # Did you read the comment?
+}