diff --git a/common.nix b/common.nix
index 06dda09..7ff46c6 100644
--- a/common.nix
+++ b/common.nix
@@ -41,9 +41,9 @@ with builtins;
 
   services = {
     openssh = {
-      settings.PasswordAuthentication = false;
-      settings.KbdInteractiveAuthentication = false;
       enable = true;
+      # settings.PasswordAuthentication = false;
+      # settings.KbdInteractiveAuthentication = false;
     };
   };
 
diff --git a/flake.nix b/flake.nix
index 4ae43af..0316aca 100644
--- a/flake.nix
+++ b/flake.nix
@@ -78,6 +78,23 @@
           }
         ];
       };
+      katzencafe = nixpkgs-stable.lib.nixosSystem {
+        specialArgs = {
+          inherit inputs;
+        };
+        system = "aarch64-linux";
+        modules = [
+          ./hosts/katzencafe/configuration.nix
+          home-manager.nixosModules.home-manager {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.users.jade = { nixosConfig, pkgs, ... }: {
+              home.sessionVariables.TZ = nixosConfig.time.timeZone;
+              home.stateVersion = "${nixosConfig.system.stateVersion}";
+            };
+          }
+        ];
+      };
     };
   };
 }
diff --git a/hosts/katzencafe/calckey.nix b/hosts/katzencafe/calckey.nix
new file mode 100644
index 0000000..60a0505
--- /dev/null
+++ b/hosts/katzencafe/calckey.nix
@@ -0,0 +1,49 @@
+{ pkgs, inputs, ... }: 
+{
+  imports = [ inputs.arion.nixosModules.arion ];
+  virtualisation.docker.enable = true;
+  virtualisation.arion = {
+    backend = "docker";
+    projects.calckey.settings = {
+      networks.calcnet.name = "calcnet";
+      services = {
+        "web".service = {
+          image = "docker.io/thatonecalculator/calckey";
+          container_name = "calckey_web";
+          restart = "unless-stopped";
+          depends_on = [ "db" "redis" ];
+          ports = [ "3000:3000" ];
+          networks = [ "calcnet" ];
+          environment = { 
+            "NODE_ENV" = "production"; 
+          };
+          volumes = [
+            "/calckey/files:/calckey/files"
+            "/calckey/config:/calckey/.config:ro"
+          ];
+        };
+        "redis".service = {
+          image = "docker.io/redis:7.0-alpine";
+          container_name = "calckey_redis";
+          restart = "unless-stopped";
+          networks = [ "calcnet" ];
+          volumes = [ "/calckey/redis:/data" ];
+        };
+        "db".service = {
+          image = "docker.io/postgres:12.2-alpine";
+          container_name = "calckey_db";
+          restart = "unless-stopped";
+          networks = [ "calcnet" ];
+          environment = {
+            POSTGRES_PASSWORD = "calckey";
+            POSTGRES_USER = "calckey";
+            POSTGRES_DB = "calckey";
+          };
+          volumes = [
+            "/calckey/db:/var/lib/postgresql/data"
+          ];
+        };
+      };
+    };
+  };
+}
diff --git a/hosts/katzencafe/configuration.nix b/hosts/katzencafe/configuration.nix
new file mode 100644
index 0000000..bd3c1c5
--- /dev/null
+++ b/hosts/katzencafe/configuration.nix
@@ -0,0 +1,109 @@
+# 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 =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      ../../common.nix
+      ../../modules/zsh.nix
+      ../../modules/neovim.nix
+      ../../modules/firewall.nix
+
+      ./proxy.nix
+      ./calckey.nix
+    ];
+
+  jade = {
+    neovim.enable = true;
+    zsh.enable = true;
+  };
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = false;
+
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  networking.hostName = "katzencafe"; # 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.
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.jade = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    packages = with pkgs; [
+    ];
+  };
+
+  # List packages installed in system profile. To search, run:
+  environment.systemPackages = with pkgs; [
+    vim gitMinimal # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+  ];
+
+  system.stateVersion = "22.11"; # Did you read the comment?
+
+  services.jitsi-meet = {
+    enable = true;
+    hostName = "meet.katzen.cafe";
+  };
+  services.jitsi-videobridge.openFirewall = true;
+
+  services.murmur = {
+    enable = true;
+    openFirewall = true;
+    registerHostname = "mumble.katzen.cafe";
+    sslKey = "/var/lib/acme/mumble.katzen.cafe/key.pem";
+    sslCert = "/var/lib/acme/mumble.katzen.cafe/cert.pem";
+  };
+
+  containers = {
+    "phtanumb-wiki" = {
+      autoStart = true;
+      forwardPorts = [
+        {
+          containerPort = 8080;
+          hostPort = 8099;
+          protocol = "tcp";
+        }
+      ];
+      bindMounts = {
+        "/var/mediawiki" = {
+          hostPath = "/phtanum-b/wiki";
+          isReadOnly = false;
+        };
+      };
+      config = { config, pkgs, ... }: {
+        services.mediawiki = {
+          enable = true;
+          name = "phtanum-b";
+          virtualHost.listen = [
+            {
+              #ip = "127.0.0.1";
+              port = 8080;
+              ssl = false;
+            }
+          ];
+          virtualHost.adminAddr = "admin@katzen.cafe";
+          passwordFile = "/var/mediawiki/passwordFile"; 
+          extraConfig = ''
+            # Disable anonymous editing
+            $wgGroupPermissions['*']['edit'] = false;
+          '';
+        };
+
+        system.stateVersion = "22.11";
+      };
+    };
+  };
+}
+
diff --git a/hosts/katzencafe/hardware-configuration.nix b/hosts/katzencafe/hardware-configuration.nix
new file mode 100644
index 0000000..9164b68
--- /dev/null
+++ b/hosts/katzencafe/hardware-configuration.nix
@@ -0,0 +1,39 @@
+# 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 = [ "xhci_pci" "virtio_pci" "usbhid" "sr_mod" ];
+  boot.initrd.kernelModules = [ "virtio_gpu" ];
+  boot.kernelParams = [ "console=tty" ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/0ce40e38-b9ef-4d84-b678-10745b7fedb4";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/DEBB-944F";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/9cb23bf3-128c-4847-8f72-f14f4aaa5026"; }
+    ];
+
+  # 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 "aarch64-linux";
+}
diff --git a/hosts/katzencafe/proxy.nix b/hosts/katzencafe/proxy.nix
new file mode 100644
index 0000000..c8db122
--- /dev/null
+++ b/hosts/katzencafe/proxy.nix
@@ -0,0 +1,61 @@
+{ inputs, config, pkgs, ... }:
+{
+  security.acme = {
+    acceptTerms = true;
+    defaults.email = "jade@schrottkatze.de";
+    defaults.server = "https://acme-staging-v02.api.letsencrypt.org/directory";
+    defaults.webroot = "/var/lib/acme/acme-challenge";
+    certs = {
+      "ck.katzen.cafe" = {
+        group = "nginx";
+        keyType = "rsa4096";
+      };
+      "meet.katzen.cafe" = {
+        group = "nginx";
+        keyType = "rsa4096";
+      };
+      "wiki.phtanum-b.katzen.cafe" = {
+        group = "nginx";
+        keyType = "rsa4096";
+      };
+      "mumble.katzen.cafe" = {
+        group = "murmur";
+        keyType = "rsa4096";
+      };
+    };
+  };
+
+  services.nginx  = {
+    enable = true;
+
+    recommendedGzipSettings = true;
+    recommendedOptimisation = true;
+    recommendedProxySettings = true;
+    recommendedTlsSettings = true;
+
+    virtualHosts = {
+      "ck.katzen.cafe" = {
+        forceSSL = true;
+        enableACME = true;
+        locations."/" = {
+          proxyPass = "http://localhost:3000";
+          proxyWebsockets = true;
+          extraConfig = ''
+              client_max_body_size 8M;
+
+              proxy_set_header X-Real-IP $remote_addr;
+              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+              proxy_set_header X-Forwarded-Proto https;
+            '';
+        };
+      };
+      "wiki.phtanum-b.katzen.cafe" = {
+        forceSSL = true;
+        enableACME = true;
+        locations."/" = {
+          proxyPass = "http://localhost:8099";
+        };
+      };
+    };
+  };
+}
diff --git a/hosts/schrottserver/jitsi.nix b/hosts/schrottserver/jitsi.nix
deleted file mode 100644
index 3964bf1..0000000
--- a/hosts/schrottserver/jitsi.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{ inputs, config, pkgs, ... }:
-{
-  services.jitsi-meet = {
-    enable = true;
-    hostName = "meet.katzen.cafe";
-  };
-  services.jitsi-videobridge.openFirewall = true;
-}