Merge branch 'master' of prism.r:stockholm

39 files changed, 415 insertions, 216 deletions

diff --git a/makefu/0tests/data/secrets/netdata-stream.conf b/makefu/0tests/data/secrets/netdata-stream.conf
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/makefu/0tests/data/secrets/netdata-stream.conf
diff --git a/makefu/0tests/data/secrets/nsupdate-cache.nix b/makefu/0tests/data/secrets/nsupdate-cache.nix
new file mode 100644
index 000000000..f5e704702
--- /dev/null
+++ b/makefu/0tests/data/secrets/nsupdate-cache.nix
@@ -0,0 +1 @@
+"derp"
diff --git a/makefu/1systems/full/source.nix b/makefu/1systems/full/source.nix
deleted file mode 100644
index 1e36c6e87..000000000
--- a/makefu/1systems/full/source.nix
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  name="gum";
-  torrent = true;
-  clever_kexec = true;
-}
diff --git a/makefu/1systems/gum/config.nix b/makefu/1systems/gum/config.nix
index 3d2cbac6f..dcfa3d0e5 100644
--- a/makefu/1systems/gum/config.nix
+++ b/makefu/1systems/gum/config.nix
@@ -4,13 +4,14 @@ with import <stockholm/lib>;
 let
   external-ip = config.krebs.build.host.nets.internet.ip4.addr;
   ext-if = config.makefu.server.primary-itf;
+  allDisks = [ "/dev/sda" "/dev/sdb" ];
 in {
   imports = [
       <stockholm/makefu>
       ./hardware-config.nix
       {
         users.users.lass = {
-          uid = 9002;
+          uid = 19002;
           isNormalUser = true;
           createHome = true;
           useDefaultShell = true;
@@ -20,8 +21,12 @@ in {
           ];
         };
       }
+      # <stockholm/makefu/2configs/stats/client.nix>
+      <stockholm/makefu/2configs/stats/netdata-server.nix>
+
       <stockholm/makefu/2configs/headless.nix>
-      # <stockholm/makefu/2configs/smart-monitor.nix>
+      <stockholm/makefu/2configs/smart-monitor.nix>
+      { services.smartd.devices = builtins.map (x: { device = x; }) allDisks; }
 
       # Security
       <stockholm/makefu/2configs/sshd-totp.nix>
@@ -30,6 +35,8 @@ in {
       <stockholm/makefu/2configs/tools/core.nix>
       <stockholm/makefu/2configs/tools/dev.nix>
       <stockholm/makefu/2configs/tools/sec.nix>
+      <stockholm/makefu/2configs/tools/desktop.nix>
+
       <stockholm/makefu/2configs/zsh-user.nix>
       <stockholm/makefu/2configs/mosh.nix>
       # <stockholm/makefu/2configs/gui/xpra.nix>
@@ -41,17 +48,47 @@ in {
       <stockholm/makefu/2configs/iodined.nix>
       # <stockholm/makefu/2configs/backup.nix>
       <stockholm/makefu/2configs/tinc/retiolum.nix>
+      { # bonus retiolum config for connecting more hosts
+        krebs.tinc.retiolum = {
+          extraConfig = ''
+            ListenAddress = ${external-ip} 53
+            ListenAddress = ${external-ip} 655
+            ListenAddress = ${external-ip} 21031
+          '';
+          connectTo = [
+            "prism" "ni" "enklave" "eve" "archprism"
+          ];
+        };
+        networking.firewall = {
+          allowedTCPPorts =
+          [
+            53
+            655
+            21031
+          ];
+          allowedUDPPorts =
+          [
+            53
+            655
+            21031
+          ];
+        };
+      }
 
       # ci
       # <stockholm/makefu/2configs/exim-retiolum.nix>
       <stockholm/makefu/2configs/git/cgit-retiolum.nix>
+      <stockholm/makefu/2configs/shack/events-publisher>
       <stockholm/makefu/2configs/shack/gitlab-runner>
       <stockholm/makefu/2configs/remote-build/slave.nix>
       <stockholm/makefu/2configs/taskd.nix>
 
       # services
-      <stockholm/makefu/2configs/sabnzbd.nix>
+      # <stockholm/makefu/2configs/sabnzbd.nix>
       <stockholm/makefu/2configs/mail/mail.euer.nix>
+      {
+        krebs.exim.enable = mkForce false;
+      }
 
       # sharing
       <stockholm/makefu/2configs/share/gum.nix>
@@ -59,13 +96,6 @@ in {
       #<stockholm/makefu/2configs/retroshare.nix>
       ## <stockholm/makefu/2configs/ipfs.nix>
       #<stockholm/makefu/2configs/syncthing.nix>
-      { # ncdc
-        environment.systemPackages = [ pkgs.ncdc ];
-        networking.firewall = {
-          allowedUDPPorts = [ 51411 ];
-          allowedTCPPorts = [ 51411 ];
-        };
-      }
       # <stockholm/makefu/2configs/opentracker.nix>
 
       ## network
@@ -91,17 +121,17 @@ in {
       #<stockholm/makefu/2configs/nginx/public_html.nix>
       #<stockholm/makefu/2configs/nginx/update.connector.one.nix>
       <stockholm/makefu/2configs/nginx/misa-felix-hochzeit.ml.nix>
-      <stockholm/makefu/2configs/nginx/gold.krebsco.de.nix>
+      # <stockholm/makefu/2configs/nginx/gold.krebsco.de.nix>
       <stockholm/makefu/2configs/nginx/iso.euer.nix>
-      <stockholm/makefu/2configs/shack/events-publisher>
+      <stockholm/krebs/2configs/cache.nsupdate.info.nix>
 
       <stockholm/makefu/2configs/deployment/photostore.krebsco.de.nix>
       <stockholm/makefu/2configs/deployment/graphs.nix>
       <stockholm/makefu/2configs/deployment/owncloud.nix>
       <stockholm/makefu/2configs/deployment/boot-euer.nix>
-      <stockholm/makefu/2configs/deployment/bgt/hidden_service.nix>
+      <stockholm/makefu/2configs/bgt/download.binaergewitter.de.nix>
+      <stockholm/makefu/2configs/bgt/hidden_service.nix>
 
-      <stockholm/makefu/2configs/stats/client.nix>
       # <stockholm/makefu/2configs/logging/client.nix>
 
       # sharing
@@ -115,7 +145,8 @@ in {
 
       # krebs infrastructure services
       <stockholm/makefu/2configs/stats/server.nix>
-  ];
+    ];
+
   makefu.dl-dir = "/var/download";
 
   services.openssh.hostKeys = [
@@ -125,70 +156,14 @@ in {
   services.nginx.virtualHosts.cgit.serverAliases = [ "cgit.euer.krebsco.de" ];
   krebs.build.host = config.krebs.hosts.gum;
 
-  krebs.tinc.retiolum = {
-    extraConfig = ''
-      ListenAddress = ${external-ip} 53
-      ListenAddress = ${external-ip} 655
-      ListenAddress = ${external-ip} 21031
-    '';
-    connectTo = [
-      "prism" "ni" "enklave" "dishfire" "echelon" "hotdog"
-    ];
-  };
-
-
-  # access
-  users.users = {
-    root.openssh.authorizedKeys.keys = [ config.krebs.users.makefu-omo.pubkey ];
-    makefu.openssh.authorizedKeys.keys = [ config.krebs.users.makefu-vbob.pubkey config.krebs.users.makefu-bob.pubkey ];
-  };
-
-  # Chat
-  environment.systemPackages = with pkgs;[
-    weechat
-    bepasty-client-cli
-    tmux
-  ];
-
-  # Hardware
-
   # Network
   networking = {
     firewall = {
         allowPing = true;
         logRefusedConnections = false;
-        allowedTCPPorts = [
-          # smtp
-          25
-          # http
-          80 443
-          # httptunnel
-          8080 8443
-          # tinc
-          655
-          # tinc-shack
-          21032
-          # tinc-retiolum
-          21031
-          # taskserver
-          53589
-          # temp vnc
-          18001
-          # temp reverseshell
-          31337
-        ];
-        allowedUDPPorts = [
-          # tinc
-          655 53
-          # tinc-retiolum
-          21031
-          # tinc-shack
-          21032
-        ];
     };
     nameservers = [ "8.8.8.8" ];
   };
   users.users.makefu.extraGroups = [ "download" "nginx" ];
-  boot.tmpOnTmpfs = true;
   state = [ "/home/makefu/.weechat" ];
 }
diff --git a/makefu/1systems/gum/hardware-config.nix b/makefu/1systems/gum/hardware-config.nix
index bfe29b46c..e9670a5a4 100644
--- a/makefu/1systems/gum/hardware-config.nix
+++ b/makefu/1systems/gum/hardware-config.nix
@@ -46,7 +46,7 @@ in {
     "ata_piix" "vmw_pvscsi" "virtio_pci" "sd_mod" "ahci"
     "xhci_pci" "ehci_pci" "ahci" "sd_mod"
   ];
-  boot.kernelModules = [ "kvm-intel"  ];
+  boot.kernelModules = [ "dm-thin-pool" "kvm-intel"  ];
   hardware.enableRedistributableFirmware = true;
   fileSystems."/" = {
     device = "/dev/mapper/nixos-root";
@@ -56,10 +56,19 @@ in {
     device = "/dev/mapper/nixos-lib";
     fsType = "ext4";
   };
+  fileSystems."/var/log" = {
+    device = "/dev/mapper/nixos-log";
+    fsType = "ext4";
+  };
   fileSystems."/var/download" = {
     device = "/dev/mapper/nixos-download";
     fsType = "ext4";
   };
+  fileSystems."/var/www/binaergewitter" = {
+    device = "/dev/mapper/nixos-binaergewitter";
+    fsType = "ext4";
+    options = [ "nofail" ];
+  };
   fileSystems."/var/lib/borgbackup" = {
     device = "/dev/mapper/nixos-backup";
     fsType = "ext4";
diff --git a/makefu/1systems/gum/rescue.txt b/makefu/1systems/gum/rescue.txt
index 30276b7db..0a3ed96ee 100644
--- a/makefu/1systems/gum/rescue.txt
+++ b/makefu/1systems/gum/rescue.txt
@@ -1,10 +1,14 @@
+ssh gum.i -o StrictHostKeyChecking=no
+
 mount /dev/mapper/nixos-root /mnt
 mount /dev/sda2 /mnt/boot
 
 chroot-prepare /mnt
 chroot /mnt /bin/sh
 
+
 journalctl  -D /mnt/var/log/journal --since today # find the active system (or check grub)
+# ... activating ...
 
 export PATH=/nix/store/9incs5sfn7n1vh1lavgp95v761nh11w3-nixos-system-nextgum-18.03pre-git/sw/bin
 /nix/store/9incs5sfn7n1vh1lavgp95v761nh11w3-nixos-system-nextgum-18.03pre-git/activate
diff --git a/makefu/1systems/gum/source.nix b/makefu/1systems/gum/source.nix
index 6940498f1..1e36c6e87 100644
--- a/makefu/1systems/gum/source.nix
+++ b/makefu/1systems/gum/source.nix
@@ -1,5 +1,5 @@
 {
-  name="nextgum";
+  name="gum";
   torrent = true;
   clever_kexec = true;
 }
diff --git a/makefu/1systems/iso/config.nix b/makefu/1systems/iso/config.nix
index 34a75dbd3..fdf203d5b 100644
--- a/makefu/1systems/iso/config.nix
+++ b/makefu/1systems/iso/config.nix
@@ -10,7 +10,7 @@ with import <stockholm/lib>;
   ];
   # TODO: NIX_PATH and nix.nixPath are being set by default.nix right now
   # cd ~/stockholm ; nix-build -A config.system.build.isoImage -I nixos-config=makefu/1systems/iso.nix -I secrets=/home/makefu/secrets/iso /var/src/nixpkgs/nixos
-  krebs.build.host = config.krebs.hosts.iso;
+  krebs.build.host = { cores = 0; };
   isoImage.isoBaseName = lib.mkForce "stockholm";
   krebs.hidden-ssh.enable = true;
   environment.systemPackages = with pkgs; [
diff --git a/makefu/1systems/omo/config.nix b/makefu/1systems/omo/config.nix
index 260f96081..81b1e0ea1 100644
--- a/makefu/1systems/omo/config.nix
+++ b/makefu/1systems/omo/config.nix
@@ -44,7 +44,8 @@ in {
       # <stockholm/makefu/2configs/share/omo-timemachine.nix>
       <stockholm/makefu/2configs/tinc/retiolum.nix>
 
-
+      # statistics
+      <stockholm/makefu/2configs/stats/client.nix>
       # Logging
       #influx + grafana
       <stockholm/makefu/2configs/stats/server.nix>
@@ -74,7 +75,8 @@ in {
           "homeassistant-0.77.2"
         ];
       }
-      <stockholm/makefu/2configs/deployment/homeautomation>
+      <stockholm/makefu/2configs/homeautomation>
+      <stockholm/makefu/2configs/homeautomation/google-muell.nix>
       {
         makefu.ps3netsrv = {
           enable = true;
diff --git a/makefu/1systems/omo/hw/omo.nix b/makefu/1systems/omo/hw/omo.nix
index 1b618a486..31db335bb 100644
--- a/makefu/1systems/omo/hw/omo.nix
+++ b/makefu/1systems/omo/hw/omo.nix
@@ -48,9 +48,8 @@ in {
 
   makefu.snapraid = {
     enable = true;
-    # TODO: 3 is not protected
-    disks = map toMapper [ 0 1 ];
-    parity = toMapper 2;
+    disks = map toMapper [ 0 2 3 ];
+    parity = toMapper 1;
   };
   fileSystems = let
     cryptMount = name:
diff --git a/makefu/1systems/wbob/config.nix b/makefu/1systems/wbob/config.nix
index f2311fb55..3930406b1 100644
--- a/makefu/1systems/wbob/config.nix
+++ b/makefu/1systems/wbob/config.nix
@@ -20,9 +20,6 @@ in {
       <stockholm/makefu/2configs/mqtt.nix>
       <stockholm/makefu/2configs/gui/wbob-kiosk.nix>
 
-      <stockholm/makefu/2configs/stats/client.nix>
-
-
       # <stockholm/makefu/2configs/gui/studio-virtual.nix>
       # <stockholm/makefu/2configs/audio/jack-on-pulse.nix>
       # <stockholm/makefu/2configs/audio/realtime-audio.nix>
@@ -35,6 +32,8 @@ in {
       <stockholm/makefu/2configs/bluetooth-mpd.nix>
 
       # Sensors
+      <stockholm/makefu/2configs/stats/client.nix>
+      <stockholm/makefu/2configs/stats/collectd-client.nix>
       <stockholm/makefu/2configs/stats/telegraf>
       <stockholm/makefu/2configs/stats/telegraf/airsensor.nix>
       <stockholm/makefu/2configs/stats/telegraf/europastats.nix>
@@ -51,9 +50,9 @@ in {
           "homeassistant-0.77.2"
         ];
       }
-      <stockholm/makefu/2configs/deployment/bureautomation>
-      <stockholm/makefu/2configs/deployment/bureautomation/mpd.nix>
-      <stockholm/makefu/2configs/deployment/bureautomation/hass.nix>
+      <stockholm/makefu/2configs/bureautomation>
+      <stockholm/makefu/2configs/bureautomation/mpd.nix>
+      <stockholm/makefu/2configs/bureautomation/hass.nix>
       (let
           collectd-port = 25826;
           influx-port = 8086;
diff --git a/makefu/2configs/bgt/auphonic.pub b/makefu/2configs/bgt/auphonic.pub
new file mode 100644
index 000000000..37b8e0599
--- /dev/null
+++ b/makefu/2configs/bgt/auphonic.pub
@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDvP50lgtHhlC3LKzC1/4yzJNxkZFDSIBvEfavNfchNKJUEBPo82oVtfFgJR5XfjI7c2U9dHl+0q4qMl+9ZiZWr2YgDpAr78kpur4gjWKrnBa2eT9GIfXB3Tm1+OpI2HoeOHUKEK1gKqqe9tJfS+CLb7DLCjulW8zdLiiH6KmvyaH78hGjZv+bpx7H4rItAinl8vGe+ceRIk4tZbmkyhphXbQZa3Ov+imiJXIr7fmX3tkOhUp4YwrVlUK8J0MEa1Kf7ZYWRqvGnKYFQ73LwLPz7UIOZ93zPF4d0R7xqvdEEhIx+u1/gToQZSMUczbVqg3dixr3yeBhFA/6h0lTA61mx
diff --git a/makefu/2configs/nginx/download.binaergewitter.de.nix b/makefu/2configs/bgt/download.binaergewitter.de.nix
index 6b5687e72..6d64848f5 100644
--- a/makefu/2configs/nginx/download.binaergewitter.de.nix
+++ b/makefu/2configs/bgt/download.binaergewitter.de.nix
@@ -1,12 +1,25 @@
 { config, lib, pkgs, ... }:
 
+with import <stockholm/lib>;
 let
-  ident = (toString <secrets>) + "/mirrorsync.gum.id_ed25519";
+  ident = (builtins.readFile ./auphonic.pub);
 in {
-  systemd.services.mirrorsync = {
-    startAt = "08:00:00";
-    path = with pkgs; [ rsync openssh ];
-    script = ''rsync -av -e "ssh -i ${ident}" mirrorsync@159.69.132.234:/var/www/html/ /var/www/binaergewitter'';
+  services.openssh = {
+    allowSFTP = true;
+    sftpFlags = [ "-l VERBOSE" ];
+    extraConfig = ''
+      Match User auphonic
+        ForceCommand internal-sftp
+        AllowTcpForwarding no
+        X11Forwarding no
+        PasswordAuthentication no
+    '';
+  };
+  users.users.auphonic = {
+    uid = genid "auphonic";
+    group = "nginx";
+    useDefaultShell = true;
+    openssh.authorizedKeys.keys = [ ident config.krebs.users.makefu.pubkey ];
   };
   services.nginx = {
     enable = lib.mkDefault true;
diff --git a/makefu/2configs/deployment/bgt/hidden_service.nix b/makefu/2configs/bgt/hidden_service.nix
index c1a31b8dc..c1a31b8dc 100644
--- a/makefu/2configs/deployment/bgt/hidden_service.nix
+++ b/makefu/2configs/bgt/hidden_service.nix
diff --git a/makefu/2configs/binary-cache/lass.nix b/makefu/2configs/binary-cache/lass.nix
index 46b386e14..51b4a1afc 100644
--- a/makefu/2configs/binary-cache/lass.nix
+++ b/makefu/2configs/binary-cache/lass.nix
@@ -3,7 +3,7 @@
 {
   nix = {
     binaryCaches = [
-      "http://cache.prism.r"
+      "https://cache.krebsco.de"
     ];
     binaryCachePublicKeys = [
       "cache.prism-1:+S+6Lo/n27XEtvdlQKuJIcb1yO5NUqUCE2lolmTgNJU="
diff --git a/makefu/2configs/bitlbee.nix b/makefu/2configs/bitlbee.nix
index 17efa7113..e955384d6 100644
--- a/makefu/2configs/bitlbee.nix
+++ b/makefu/2configs/bitlbee.nix
@@ -3,6 +3,6 @@
 {
    services.bitlbee = {
     enable = true;
-    libpurple_plugins = [ pkgs.telegram-purple ];
+    libpurple_plugins = [ pkgs.telegram-purple pkgs.pidgin-skypeweb];
   };
 }
diff --git a/makefu/2configs/deployment/bureautomation/default.nix b/makefu/2configs/bureautomation/default.nix
index 3897537ea..3897537ea 100644
--- a/makefu/2configs/deployment/bureautomation/default.nix
+++ b/makefu/2configs/bureautomation/default.nix
diff --git a/makefu/2configs/deployment/bureautomation/hass.nix b/makefu/2configs/bureautomation/hass.nix
index 443484a34..a89a4813f 100644
--- a/makefu/2configs/deployment/bureautomation/hass.nix
+++ b/makefu/2configs/bureautomation/hass.nix
@@ -112,7 +112,6 @@ in {
             "temperature" # "temperature_high" "temperature_low"
             "apparent_temperature"
             "hourly_summary" # next 24 hours text
-            "minutely_summary"
             "humidity"
             "pressure"
             "uv_index" ];
@@ -212,27 +211,44 @@ in {
             to = "on";
           };
           action = {
-            service= "homeassistant.turn_on";
-            entity_id= "switch.fernseher";
+            service = "homeassistant.turn_on";
+            entity_id =  [ "switch.fernseher" "switch.blitzdings" ];
           };
         }
         { alias = "Turn off Fernseher 10 minutes after last movement";
-          trigger = {
+          trigger = [ 
+          { # trigger when movement was detected at the time
             platform = "state";
             entity_id = "binary_sensor.motion";
             to = "off";
             for.minutes = 10;
-          };
+          }
+          { # trigger at 20:00 no matter what
+            # to avoid 'everybody left before 18:00:00'
+            platform = "time";
+            at = "18:00:00";
+          }
+        ];
           action = {
-            service= "homeassistant.turn_off";
-            entity_id= "switch.fernseher";
+            service = "homeassistant.turn_off";
+            entity_id =  [ "switch.fernseher" "switch.blitzdings" ];
+          };
+          condition =
+          { condition = "and";
+            conditions = [
+              {
+                condition = "time";
+                before = "06:30:00"; #only turn off between 6:30 and 18:00
+                after  = "18:00:00";
+                # weekday = [ "mon" "tue" "wed" "thu" "fri" ];
+              }
+              {
+                condition = "state";
+                entity_id = "binary_sensor.motion";
+                state = "off";
+              }
+            ];
           };
-          condition = [{
-            condition = "time";
-            before = "06:30:00"; #only turn off between 6:30 and 18:00
-            after  = "18:00:00";
-            weekday = [ "mon" "tue" "wed" "thu" "fri" ];
-          }];
         }
       ];
     };
diff --git a/makefu/2configs/deployment/bureautomation/mpd.nix b/makefu/2configs/bureautomation/mpd.nix
index 1f5acb357..1f5acb357 100644
--- a/makefu/2configs/deployment/bureautomation/mpd.nix
+++ b/makefu/2configs/bureautomation/mpd.nix
diff --git a/makefu/2configs/elchos/search.nix b/makefu/2configs/elchos/search.nix
index 521bfc80a..e7b91e6a8 100644
--- a/makefu/2configs/elchos/search.nix
+++ b/makefu/2configs/elchos/search.nix
@@ -32,7 +32,7 @@ let
       ${user}
 
       protocol=dyndns2
-      usev5=if, if=${primary-itf}
+      usev6=if, if=${primary-itf}
       ssl=yes
       server=ipv6.nsupdate.info
       login=${user}
diff --git a/makefu/2configs/deployment/homeautomation/default.nix b/makefu/2configs/homeautomation/default.nix
index 94799b11d..596d0002a 100644
--- a/makefu/2configs/deployment/homeautomation/default.nix
+++ b/makefu/2configs/homeautomation/default.nix
@@ -31,7 +31,7 @@ let
     brightness_scale = 100;
     # color
     rgb_state_topic = "/ham/${topic}/stat/Color";
-    rgb_command_topic = "/ham/${topic}/cmnd/Color2";
+    rgb_command_topic = "/ham/${topic}/cmnd/MEM1"; # use enabled tasmota rule
     rgb_command_mode = "hex";
     rgb_command_template = "{{ '%02x%02x%02x' | format(red, green, blue)}}";
     # effects
diff --git a/makefu/2configs/deployment/google-muell.nix b/makefu/2configs/homeautomation/google-muell.nix
index 235cc1546..235cc1546 100644
--- a/makefu/2configs/deployment/google-muell.nix
+++ b/makefu/2configs/homeautomation/google-muell.nix
diff --git a/makefu/2configs/deployment/homeautomation/mqtt.nix b/makefu/2configs/homeautomation/mqtt.nix
index cd1c328d7..cd1c328d7 100644
--- a/makefu/2configs/deployment/homeautomation/mqtt.nix
+++ b/makefu/2configs/homeautomation/mqtt.nix
diff --git a/makefu/2configs/mail/mail.euer.nix b/makefu/2configs/mail/mail.euer.nix
index f079d7f41..f8f82e76b 100644
--- a/makefu/2configs/mail/mail.euer.nix
+++ b/makefu/2configs/mail/mail.euer.nix
@@ -1,7 +1,7 @@
 { config, pkgs, ... }:
 {
   imports = [
-    (builtins.fetchTarball "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/v2.1.4/nixos-mailserver-v2.1.4.tar.gz")
+    (builtins.fetchTarball "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/v2.2.0/nixos-mailserver-v2.2.0.tar.gz")
   ];
 
   mailserver = {
diff --git a/makefu/2configs/minimal.nix b/makefu/2configs/minimal.nix
index d764e5624..cb2ef09e3 100644
--- a/makefu/2configs/minimal.nix
+++ b/makefu/2configs/minimal.nix
@@ -7,8 +7,8 @@
   # the only true timezone (even after the the removal of DST)
   time.timeZone = "Europe/Berlin";
 
-  networking.hostName = config.krebs.build.host.name;
-  nix.buildCores = config.krebs.build.host.cores;
+  networking.hostName = lib.mkIf (lib.hasAttr "host" config.krebs.build) config.krebs.build.host.name;
+  nix.buildCores = 0; # until https://github.com/NixOS/nixpkgs/pull/50440 is in stable
 
   # we use gpg if necessary (or nothing at all)
   programs.ssh.startAgent = false;
@@ -85,4 +85,6 @@
     "net.ipv6.conf.all.use_tempaddr" = 2;
     "net.ipv6.conf.default.use_tempaddr" = 2;
   };
+
+  services.nscd.enable = false;
 }
diff --git a/makefu/2configs/nginx/gum.krebsco.de.nix b/makefu/2configs/nginx/gum.krebsco.de.nix
new file mode 100644
index 000000000..3e96e6826
--- /dev/null
+++ b/makefu/2configs/nginx/gum.krebsco.de.nix
@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+
+with import <stockholm/lib>;
+let
+in {
+  services.nginx = {
+    enable = mkDefault true;
+    virtualHosts."gum.krebsco.de" = {
+      forceSSL = true;
+      enableACME = true;
+      locations."/" =  {
+        # proxyPass = "http://localhost:8000/";