diff --git a/krebs/3modules/external/default.nix b/krebs/3modules/external/default.nix
index df18b4dd3..089113ac6 100644
--- a/krebs/3modules/external/default.nix
+++ b/krebs/3modules/external/default.nix
@@ -141,6 +141,29 @@ in {
         };
       };
     };
+    idontcare = {
+      owner = config.krebs.users.Mic92;
+      nets = rec {
+        retiolum = {
+          addrs = [
+            config.krebs.hosts.idontcare.nets.retiolum.ip4.addr
+            config.krebs.hosts.idontcare.nets.retiolum.ip6.addr
+          ];
+          ip4.addr = "10.243.29.177";
+          aliases = [ "idontcare.r" ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIIBCgKCAQEAxmmbQLVXcnCU9Vg9TCoJxfq/RyNfzaTj8XJsn4Kpo3CvQOwFzL6O
+            qZnbG55WjPjPumuFgtUdHA/G8mgtrTVaIRbVE9ck2l2wWFzMWxORzuvDbMh5xP8A
+            OW2Z2qjlH6O9GTBCzpYyHuyBWCjtiN4x9zEqxkIsBARKOylAoy3zQIiiQF0d72An
+            lqKFi9vYUU90zo9rP8BTzx2ZsEWb28xhHUlwf1+vgaOHI1jI99gnr12dVYl/i/Hb
+            O28gDUogfpP/5pWFAHJ+53ZscHo8/Y7imjiKgGXmOHywoXOsKQ67M6ROEU/0xPnw
+            jKmq2p7zTJk2mDhphjePi5idd5yKNX5Q3wIDAQAB
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+    };
     justraute = {
       owner = config.krebs.users.raute; # laptop
       nets = {
@@ -393,7 +416,7 @@ in {
       pubkey = ssh-for "kmein";
     };
     Mic92 = {
-      mail = "joerg@higgsboson.tk";
+      mail = "joerg@thalheim.io";
       pubkey = ssh-for "Mic92";
     };
     palo = {
diff --git a/krebs/3modules/hosts.nix b/krebs/3modules/hosts.nix
index a95557b3d..0985bb539 100644
--- a/krebs/3modules/hosts.nix
+++ b/krebs/3modules/hosts.nix
@@ -13,24 +13,23 @@ in {
   };
 
   config = {
-    networking.extraHosts =
-      concatStringsSep
-        "\n"
-        (flatten
-          (mapAttrsToList
-            (hostname: host:
-              mapAttrsToList
-                (netname: net: let
+    networking.hosts =
+      filterAttrs
+        (_name: value: value != [])
+        (zipAttrsWith
+          (_: concatLists)
+          (concatMap
+            (host:
+              concatMap
+                (net: let
                   aliases = longs ++ shorts;
                   longs = filter check net.aliases;
                   shorts = let s = ".${config.krebs.dns.search-domain}"; in
                     map (removeSuffix s) (filter (hasSuffix s) longs);
                 in
-                  optionals
-                    (aliases != [])
-                    (map (addr: "${addr} ${toString aliases}") net.addrs))
-                (filterAttrs (name: host: host.aliases != []) host.nets))
-            config.krebs.hosts));
+                  map (addr: { ${addr} = aliases; }) net.addrs)
+                (attrValues host.nets))
+            (attrValues config.krebs.hosts)));
   };
 
 }
diff --git a/krebs/3modules/reaktor2.nix b/krebs/3modules/reaktor2.nix
new file mode 100644
index 000000000..b667bcc92
--- /dev/null
+++ b/krebs/3modules/reaktor2.nix
@@ -0,0 +1,63 @@
+with import <stockholm/lib>;
+{ config, pkgs, ... }: {
+
+  options.krebs.reaktor2 = mkOption {
+    default = {};
+    type = types.attrsOf (types.submodule (self: let
+      name = self.config._module.args.name;
+    in {
+      options = {
+        nick = mkOption {
+          default = name;
+          # TODO types.irc.nickname
+          type = types.str;
+        };
+        hostname = mkOption {
+          default = "irc.r";
+          type = types.hostname;
+        };
+        port = mkOption {
+          default = "6667";
+          # TODO type = types.service-name
+        };
+        plugins = mkOption {
+          default = [];
+          type = types.listOf types.attrs;
+        };
+        stateDir = mkOption {
+          default = "/var/lib/${self.config.systemd-service-name}";
+          readOnly = true;
+          type = types.absolute-pathname;
+        };
+        systemd-service-name = mkOption {
+          default = "reaktor2${optionalString (name != "default") "-${name}"}";
+          type = types.filename;
+        };
+      };
+    }));
+  };
+
+  config = {
+    systemd.services = flip mapAttrs' config.krebs.reaktor2 (_: cfg:
+      nameValuePair cfg.systemd-service-name {
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          User = cfg.systemd-service-name;
+          Group = "reaktor2";
+          DynamicUser = true;
+          StateDirectory = cfg.systemd-service-name;
+          ExecStart = let
+            configFile = pkgs.writeJSON configFileName configValue;
+            configFileName = "${cfg.systemd-service-name}.config.json";
+            configValue = recursiveUpdate {
+              logTime = false;
+            } (removeAttrs cfg ["_module"]);
+          in "${pkgs.reaktor2}/bin/reaktor ${configFile}";
+          Restart = "always";
+          RestartSec = "30";
+        };
+      }
+    );
+  };
+}
diff --git a/krebs/5pkgs/default.nix b/krebs/5pkgs/default.nix
index 84c00e82d..dc04b6a72 100644
--- a/krebs/5pkgs/default.nix
+++ b/krebs/5pkgs/default.nix
@@ -22,6 +22,8 @@ foldl' mergeAttrs {}
     };
   });
 
+  reaktor2 = self.haskellPackages.reaktor2;
+
   ReaktorPlugins = self.callPackage ./simple/Reaktor/plugins.nix {};
 
   # https://github.com/proot-me/PRoot/issues/106
diff --git a/krebs/5pkgs/haskell/reaktor2.nix b/krebs/5pkgs/haskell/reaktor2.nix
new file mode 100644
index 000000000..447738425
--- /dev/null
+++ b/krebs/5pkgs/haskell/reaktor2.nix
@@ -0,0 +1,23 @@
+{ mkDerivation, aeson, attoparsec, base, blessings, bytestring
+, containers, fetchgit, filepath, network, network-simple
+, network-simple-tls, pcre-heavy, pcre-light, process, random
+, stdenv, text, time, transformers, unix, unordered-containers
+}:
+mkDerivation {
+  pname = "reaktor2";
+  version = "0.0.0";
+  src = fetchgit {
+    url = "https://cgit.krebsco.de/reaktor2";
+    sha256 = "1q2rb78mzpyd8wxfmlbfdz7zq5smsrrvb4n874ap1p8f2bmmp0am";
+    rev = "ce276eee82ec0b8c4106beb4c51d6f9eb77335c4";
+    fetchSubmodules = true;
+  };
+  isLibrary = false;
+  isExecutable = true;
+  executableHaskellDepends = [
+    aeson attoparsec base blessings bytestring containers filepath
+    network network-simple network-simple-tls pcre-heavy pcre-light
+    process random text time transformers unix unordered-containers
+  ];
+  license = stdenv.lib.licenses.mit;
+}
diff --git a/krebs/nixpkgs.json b/krebs/nixpkgs.json
index d3f681a65..614d5bccf 100644
--- a/krebs/nixpkgs.json
+++ b/krebs/nixpkgs.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/NixOS/nixpkgs-channels",
-  "rev": "0396345b79436f54920f7eb651ab42acf2eb7973",
-  "date": "2018-12-30T21:22:33-05:00",
-  "sha256": "10wd0wsair6dlilgaviqw2p9spgcf8qg736bzs08jha0f4zfqjs4",
+  "rev": "97e0d53d669cd07f0750a42fd535524b3cdd46d1",
+  "date": "2019-01-15T00:11:44+01:00",
+  "sha256": "111xa7qn9142dar29cil4br2mvn8f1rbiy310lkhwl73126fq8dw",
   "fetchSubmodules": false
 }
diff --git a/lass/2configs/games.nix b/lass/2configs/games.nix
index 62e3f6d52..a3acb82bb 100644
--- a/lass/2configs/games.nix
+++ b/lass/2configs/games.nix
@@ -74,7 +74,6 @@ in {
       createHome = true;
       useDefaultShell = true;
       packages = with pkgs; [
-        ftb
         minecraft
         steam-run
         dolphinEmu