diff --git a/kartei/krebs/default.nix b/kartei/krebs/default.nix
index 8a12d6f24..e48b3e32a 100644
--- a/kartei/krebs/default.nix
+++ b/kartei/krebs/default.nix
@@ -233,29 +233,6 @@ in {
       ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPpVwKv9mQGfcn5oFwuitq+b6Dz4jBG9sGhVoCYFw5RY";
       syncthing.id = "DK5CEE2-PNUXYCE-Q42H2HP-623GART-B7KS4VK-HU2RBGQ-EK6QPUP-HUL3PAR";
     };
-    arcadeomat = {
-      ci = true;
-      nets = {
-        retiolum = {
-          ip4.addr = "10.243.77.67";
-          aliases = [
-            "arcadeomat.r"
-          ];
-          tinc.pubkey = ''
-            -----BEGIN RSA PUBLIC KEY-----
-            MIIBCgKCAQEAzpXyEATt8+ElxPq650/fkboEC9RvTWqN6UIAl/R4Zu+uDhAZ2ekb
-            HBjoSbRxu/0w2I37nwWUhEOemxGm4PXCgWrtO0jeRF4nVNYu3ZBppA3vuVALUWq7
-            apxRUEL9FdsWQlXGo4PVd20dGaDTi8M/Ggo755MStVTY0rRLluxyPq6VAa015sNg
-            4NOFuWm0NDn4e+qrahTCTiSjbCU8rWixm0GktV40kdg0QAiFbEcRhuXF1s9/yojk
-            7JT/nFg6LELjWUSSNZnioj5oSfVbThDRelIld9VaAKBAZZ5/zy6T2XSeDfoepytH
-            8aw6itEuTCy1M1DTiTG+12SPPw+ubG+NqQIDAQAB
-            -----END RSA PUBLIC KEY-----
-            Ed25519PublicKey = n/HMlgTTyLa0fcXqSBO/G6sVOUYh2yZ5PfU4vLI9CJO
-          '';
-        };
-      };
-      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOu6EVN3928qWiWszqBUzOjeQJRvFozTBl4xAhBP/Ymc";
-    };
     wolf = {
       ci = true;
       nets = {
diff --git a/krebs/1systems/arcadeomat/config.nix b/krebs/1systems/arcadeomat/config.nix
deleted file mode 100644
index 7439e687e..000000000
--- a/krebs/1systems/arcadeomat/config.nix
+++ /dev/null
@@ -1,82 +0,0 @@
-{ config,lib, pkgs, ... }:
-let
-  shack-ip = config.krebs.build.host.nets.shack.ip4.addr;
-  ext-if = "et0";
-  external-mac = "52:54:b0:0b:af:fe";
-  mainUser = "krebs";
-
-in
-{
-  imports = [
-    ./hw.nix
-    ../../../krebs
-    ../../../krebs/2configs
-
-    #../../../krebs/2configs/binary-cache/nixos.nix
-    #../../../krebs/2configs/binary-cache/prism.nix
-
-    ../../../krebs/2configs/shack/ssh-keys.nix
-    ../../../krebs/2configs/save-diskspace.nix
-    ../../../krebs/2configs/shack/prometheus/node.nix
-
-  ];
-  # use your own binary cache, fallback use cache.nixos.org (which is used by
-  # apt-cacher-ng in first place)
-
-  # local discovery in shackspace
-  nixpkgs.config.packageOverrides = pkgs: { tinc = pkgs.tinc_pre; };
-  krebs.tinc.retiolum.extraConfig = "TCPOnly = yes";
-
-
-  #networking = {
-  #  firewall.enable = false;
-  #  firewall.allowedTCPPorts = [ 8088 8086 8083 ];
-  #  interfaces."${ext-if}".ipv4.addresses = [
-  #    {
-  #      address = shack-ip;
-  #      prefixLength = 20;
-  #    }
-  #  ];
-
-  #  defaultGateway = "10.42.0.1";
-  #  nameservers = [ "10.42.0.100" "10.42.0.200" ];
-  #};
-
-  #####################
-  # uninteresting stuff
-  #####################
-  krebs.build.host = config.krebs.hosts.arcadeomat;
-  users.users."${mainUser}" = {
-    uid = 9001;
-    extraGroups = [ "audio" "video" ];
-    isNormalUser = true;
-  };
-
-
-  time.timeZone = "Europe/Berlin";
-
-  # avahi
-  services.avahi = {
-    enable = true;
-    wideArea = false;
-  };
-  environment.systemPackages = with pkgs;[ glxinfo sdlmame ];
-  nixpkgs.config.allowUnfree = true;
-  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.legacy_340;
-  boot.kernelPackages = pkgs.linuxPackages_5_4;
-
-  services.xserver = {
-    videoDrivers = [ "nvidia" ];
-    enable = true;
-    windowManager = {
-      awesome.enable = true;
-      awesome.noArgb = true;
-      awesome.luaModules = [ pkgs.luaPackages.vicious ];
-    };
-    displayManager.defaultSession = lib.mkDefault "none+awesome";
-    displayManager.autoLogin = {
-      enable = true;
-      user = mainUser;
-    };
-  };
-}
diff --git a/krebs/1systems/arcadeomat/hw.nix b/krebs/1systems/arcadeomat/hw.nix
deleted file mode 100644
index b24deeecb..000000000
--- a/krebs/1systems/arcadeomat/hw.nix
+++ /dev/null
@@ -1,25 +0,0 @@
-
-{ config, lib, pkgs, modulesPath, ... }:
-
-{
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
-
-  boot.initrd.availableKernelModules = [ "ahci" "ohci_pci" "ehci_pci" "pata_atiixp" "usbhid" "sd_mod" ];
-  boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ "kvm-amd" ];
-  boot.extraModulePackages = [ ];
-
-  fileSystems."/" =
-    { device = "/dev/disk/by-uuid/0aae456e-0548-4917-a282-11d5d4e403cf";
-      fsType = "ext4";
-    };
-
-  swapDevices = [ ];
-  boot.loader.grub.enable = true;
-  boot.loader.grub.version = 2;
-  boot.loader.grub.device = "/dev/sda";
-  boot.loader.grub.copyKernels = true;
-
-}