Merge branch 'master' of prism:stockholm

59 files changed, 912 insertions, 281 deletions

diff --git a/Makefile b/Makefile
index ce6205c5b..cab53d52a 100644
--- a/Makefile
+++ b/Makefile
@@ -51,13 +51,23 @@ $(if $(target_user),,$(error unbound variable: target_user))
 $(if $(target_port),,$(error unbound variable: target_port))
 $(if $(target_path),,$(error unbound variable: target_path))
 
+whatsupnix = \
+	if type whatsupnix >/dev/null 2>&1; then \
+	  whatsupnix $(1); \
+	else \
+	  cat; \
+	fi
+
 build = \
 	nix-build \
+		-Q \
 		--no-out-link \
 		--show-trace \
 		-I nixos-config=$(nixos-config) \
 		-I stockholm=$(stockholm) \
-		-E "with import <stockholm>; $(1)"
+		-E "with import <stockholm>; $(1)" \
+		$(2) \
+	|& $(call whatsupnix)
 
 evaluate = \
 	nix-instantiate \
@@ -66,7 +76,8 @@ evaluate = \
 		--show-trace \
 		-I nixos-config=$(nixos-config) \
 		-I stockholm=$(stockholm) \
-		-E "let eval = import <stockholm>; in with eval; $(1)"
+		-E "let eval = import <stockholm>; in with eval; $(1)" \
+		$(2)
 
 ifeq ($(MAKECMDGOALS),)
 $(error No goals specified)
@@ -84,11 +95,7 @@ deploy:
 	$(ssh) $(target_user)@$(target_host) -p $(target_port) \
 		env STOCKHOLM_VERSION="$$STOCKHOLM_VERSION" \
 			nixos-rebuild -Q $(rebuild-command) --show-trace -I $(target_path) \
-		|& if type whatsupnix 2>/dev/null; then \
-		     whatsupnix $(target_user)@$(target_host):$(target_port); \
-		   else \
-		     cat; \
-		   fi
+	|& $(call whatsupnix,$(target_user)@$(target_host):$(target_port))
 
 # usage: make populate system=foo
 populate: populate-target = \
@@ -126,10 +133,10 @@ install:
 # usage: make test system=foo [target=bar] [method={eval,build}]
 method ?= eval
 ifeq ($(method),build)
-test: command = nix-build --no-out-link
+test: test = $(call build,$(1),$(2))
 else
 ifeq ($(method),eval)
-test: command ?= nix-instantiate --eval --json --readonly-mode --strict
+test: test ?= $(call evaluate,$(1),$(2)) --json --strict | jq -r .
 else
 $(error bad method: $(method))
 endif
@@ -141,6 +148,4 @@ else
 test: wrapper = $(ssh) $(target_user)@$(target_host) -p $(target_port)
 endif
 test: populate
-	$(wrapper) \
-		$(command) --show-trace -I $(target_path) \
-			-A config.system.build.toplevel $(target_path)/stockholm
+	$(wrapper) $(call test,config.system.build.toplevel,-I $(target_path))
diff --git a/doc/Commit_Messages_Guideline.md b/doc/Commit_Messages_Guideline.md
new file mode 100644
index 000000000..e704ee575
--- /dev/null
+++ b/doc/Commit_Messages_Guideline.md
@@ -0,0 +1,53 @@
+# Commit Messages Guideline
+
+Commits SHOULD have the following format:
+
+```
+<namespace?> <component>: <change>
+
+<rationale>
+
+(<reference-name>: <reference-id>)?
+```
+
+## `<namespace>`
+Defines where the change took place. This can be omitted if the
+namespace is `krebs`. Namespaces may be shortened to one to four characters (
+lassulus -> lass, makefu -> make, tv -> tv, shared -> sha)
+
+## `<component>`
+Name of the component which was touched. `component` is
+rather fuzzy and may mean different things, just choose what would fit best.
+
+Here are a numbers of samples for defining the component:
+
+* Change `gum` in `krebs/3modules/makefu/default.nix`: `gum.r: change ip`
+* Change `prepare.sh` in `krebs/4libs/infest`: `infest: prepare stockholm ISO`
+* Remove `concat` in `krebs/5pkgs`: `concat: RIP`, this commit may like some `<rationale>`
+* Update `types` in `krebs/3modules`: `lib/types: add managed bool to host type`
+* Change host `gum` in `makefu/1systems/gum`: `ma gum.r: add taskserver`
+* Change `tinc` module in `krebs/3modules`: `tinc module: add option enableLegacy`
+
+## `<rationale>`
+Describe some trivia why the commit was done:
+```
+whatsupnix: init
+
+Import from https://github.com/NixOS/nix/issues/443#issuecomment-296752535
+```
+
+## `<reference>`
+Defines external resouces related to the commit:
+```
+Closes: #123533
+CVE: CVE-2016-00001
+URL: https://example.com/CVE-2016-00001
+```
+
+## Remarks
+As a general rule of thumb you can check out: https://www.slideshare.net/TarinGamberini/commit-messages-goodpractices
+Of course the pattern not always fits perfectly (for example for refactoring),
+just apply some common sense and define a useful commit message,
+like `refactor krebs.setuid`.
+
+
diff --git a/doc/makefu/logbook/install_fileleech.md b/doc/makefu/logbook/install_fileleech.md
new file mode 100644
index 000000000..15f8c1bca
--- /dev/null
+++ b/doc/makefu/logbook/install_fileleech.md
@@ -0,0 +1,17 @@
+# install fileleech
+
+```
+builder$ python3 host.py --create-ssh-keys --create-passwords fileleech
+iso$ fdisk /dev/sda # 3 partitions, grub,boot,crypt
+iso$ cryptsetup luksFormat /dev/sda3 --cipher aes-xts-plain64 -s 512 -h sha512
+iso$ cryptsetup luksAddKey /dev/sda3 hddkey
+iso$ cryptsetup luksOpen --keyfile-size=4096  -d /dev/disk/by-id/usb-Intuix_DiskOnKey_09A07360336198F8-0:0 /dev/disk/by-id/ata-INTEL_SSDSA2M080G2GC_CVPO003402PB080BGN-part3 luksroot
+iso$ mkfs.ext4 -Lnixboot /dev/sda2
+iso$ mkfs.ext4 -Lroot /dev/mapper/luksroot
+iso$ echo 1 > /proc/sys/net/ipv6/conf/enp8s0f0/disable_ipv6
+iso$ mount /dev/mapper/luksroot /mnt
+iso$ mkdir /mnt/boot
+iso$ mount /dev/sda2 /mnt/boot
+iso$ mkdir -p /mnt/var/src
+iso$ touch /mnt/var/src/.populate
+```
diff --git a/doc/makefu/logbook/transfer_gum.md b/doc/makefu/logbook/transfer_gum.md
new file mode 100644
index 000000000..5f9c88256
--- /dev/null
+++ b/doc/makefu/logbook/transfer_gum.md
@@ -0,0 +1,16 @@
+# transfer gum to new hosts
+
+```
+builder$ vim krebs/3modules/makefu/default.nix
+## update ip
+builder$ vim makefu/1systems/gum.nix
+## update hardware config
+
+old-gum$ rsync --progress -lprtvzF  . <newip>:/mnt/
+
+new-gum$ touch /mnt/var/src/.populate
+new-gum$ gdisk /dev/sda r;g;w # gpt to mbr
+
+builder$ make -C ~/stockholm system=gum target=vcygfnhdxyxr47zu.onion install
+
+```
diff --git a/krebs/3modules/build.nix b/krebs/3modules/build.nix
index 51f192703..976d378f9 100644
--- a/krebs/3modules/build.nix
+++ b/krebs/3modules/build.nix
@@ -24,4 +24,6 @@ with import <stockholm/lib>;
       type = types.user;
     };
   };
+
+  config.krebs.build.source.stockholm.file = mkDefault (toString <stockholm>);
 }
diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index 4c0ce0fe3..c517ac1d8 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -308,7 +308,6 @@ with import <stockholm/lib>;
       extraZones = {
         "krebsco.de" = ''
           wry               IN A      ${nets.internet.ip4.addr}
-          io                IN NS     wry.krebsco.de.
           tinc              IN A      ${nets.internet.ip4.addr}
         '';
       };
@@ -470,6 +469,7 @@ with import <stockholm/lib>;
           wiki.euer         IN A      ${nets.internet.ip4.addr}
           graph             IN A      ${nets.internet.ip4.addr}
           ghook             IN A      ${nets.internet.ip4.addr}
+          io                IN NS     gum.krebsco.de.
         '';
       };
       nets = rec {
diff --git a/krebs/3modules/urlwatch.nix b/krebs/3modules/urlwatch.nix
index c06e5ddb1..463fa26ba 100644
--- a/krebs/3modules/urlwatch.nix
+++ b/krebs/3modules/urlwatch.nix
@@ -60,6 +60,7 @@ let
       description = "URL to watch.";
       example = [
         https://nixos.org/channels/nixos-unstable/git-revision
+        { url = http://localhost ; filter = "grep:important.*stuff"; }
       ];
       apply = map (x: getAttr (typeOf x) {
         set = x;
@@ -79,7 +80,8 @@ let
   };
 
   urlsFile = pkgs.writeText "urls"
-    (concatMapStringsSep "\n---\n" toJSON cfg.urls);
+    (concatMapStringsSep "\n---\n"
+      (x: toJSON (filterAttrs (n: v: n != "_module") x)) cfg.urls);
 
   hooksFile = cfg.hooksFile;
 
@@ -142,17 +144,6 @@ let
         PrivateTmp = "true";
         SyslogIdentifier = "urlwatch";
         Type = "oneshot";
-        ExecStartPre =
-          pkgs.writeDash "urlwatch-prestart" ''
-            set -euf
-
-            dataDir=$HOME
-
-            if ! test -e "$dataDir"; then
-              mkdir -m 0700 -p "$dataDir"
-              chown ${user.name}: "$dataDir"
-            fi
-          '';
         ExecStart = pkgs.writeDash "urlwatch" ''
           set -euf
 
@@ -185,6 +176,8 @@ let
     };
     users.extraUsers = singleton {
       inherit (user) name uid;
+      home = cfg.dataDir;
+      createHome = true;
     };
   };
 
diff --git a/krebs/5pkgs/simple/ucspi-tcp/chmod.patch b/krebs/5pkgs/simple/ucspi-tcp/chmod.patch
new file mode 100644
index 000000000..dd6933208
--- /dev/null
+++ b/krebs/5pkgs/simple/ucspi-tcp/chmod.patch
@@ -0,0 +1,15 @@
+diff --git a/hier.c b/hier.c
+index 5663ada..1d73b84 100644
+--- a/hier.c
++++ b/hier.c
+@@ -2,8 +2,8 @@
+ 
+ void hier()
+ {
+-  h(auto_home,-1,-1,02755);
+-  d(auto_home,"bin",-1,-1,02755);
++  h(auto_home,-1,-1,0755);
++  d(auto_home,"bin",-1,-1,0755);
+ 
+   c(auto_home,"bin","tcpserver",-1,-1,0755);
+   c(auto_home,"bin","tcprules",-1,-1,0755);
diff --git a/krebs/5pkgs/simple/ucspi-tcp/default.nix b/krebs/5pkgs/simple/ucspi-tcp/default.nix
new file mode 100644
index 000000000..3b043be06
--- /dev/null
+++ b/krebs/5pkgs/simple/ucspi-tcp/default.nix
@@ -0,0 +1,86 @@
+{ stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  name = "ucspi-tcp-0.88";
+
+  src = fetchurl {
+    url = "http://cr.yp.to/ucspi-tcp/${name}.tar.gz";
+    sha256 = "171yl9kfm8w7l17dfxild99mbf877a9k5zg8yysgb1j8nz51a1ja";
+  };
+
+  # Plain upstream tarball doesn't build, get patches from Debian
+  patches = [
+    (fetchurl {
+      url = "http://ftp.de.debian.org/debian/pool/main/u/ucspi-tcp/ucspi-tcp_0.88-3.diff.gz";
+      sha256 = "0mzmhz8hjkrs0khmkzs5i0s1kgmgaqz07h493bd5jj5fm5njxln6";
+    })
+    ./chmod.patch
+  ];
+
+  # Apply Debian patches
+  postPatch = ''
+    for fname in debian/diff/*.diff; do
+        echo "Applying patch $fname"
+        patch < "$fname"
+    done
+  '';
+
+  # The build system is weird; 'make install' doesn't install anything, instead
+  # it builds an executable called ./install (from C code) which installs
+  # binaries to the directory given on line 1 in ./conf-home.
+  #
+  # Also, assume getgroups and setgroups work, instead of doing a build time
+  # test that breaks on NixOS (I think because nixbld users lack CAP_SETGID
+  # capability).
+  preBuild = ''
+    echo "$out" > conf-home
+
+    echo "main() { return 0; }" > chkshsgr.c
+  '';
+
+  installPhase = ''
+    mkdir -p "$out/bin"
+    mkdir -p "$out/share/man/man1"
+
+    # run the newly built installer
+    ./install
+
+    # Install Debian man pages (upstream has none)
+    cp debian/ucspi-tcp-man/*.1 "$out/share/man/man1"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Command-line tools for building TCP client-server applications";
+    longDescription = ''
+      tcpserver waits for incoming connections and, for each connection, runs a
+      program of your choice. Your program receives environment variables
+      showing the local and remote host names, IP addresses, and port numbers.
+
+      tcpserver offers a concurrency limit to protect you from running out of
+      processes and memory. When you are handling 40 (by default) simultaneous
+      connections, tcpserver smoothly defers acceptance of new connections.
+
+      tcpserver also provides TCP access control features, similar to
+      tcp-wrappers/tcpd's hosts.allow but much faster. Its access control rules
+      are compiled into a hashed format with cdb, so it can easily deal with
+      thousands of different hosts.
+
+      This package includes a recordio tool that monitors all the input and
+      output of a server.
+
+      tcpclient makes a TCP connection and runs a program of your choice. It
+      sets up the same environment variables as tcpserver.
+
+      This package includes several sample clients built on top of tcpclient:
+      who@, date@, finger@, http@, tcpcat, and mconnect.
+
+      tcpserver and tcpclient conform to UCSPI, the UNIX Client-Server Program
+      Interface, using the TCP protocol. UCSPI tools are available for several
+      different networks.
+    '';
+    homepage = http://cr.yp.to/ucspi-tcp.html;
+    license = licenses.publicDomain;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.bjornfor ];
+  };
+}
diff --git a/krebs/5pkgs/simple/whatsupnix/whatsupnix.bash b/krebs/5pkgs/simple/whatsupnix/whatsupnix.bash
index 042763048..2ad9aadc9 100644
--- a/krebs/5pkgs/simple/whatsupnix/whatsupnix.bash
+++ b/krebs/5pkgs/simple/whatsupnix/whatsupnix.bash
@@ -17,25 +17,22 @@
 #   2     Build error; at least one failed derivation could be found.
 #
 
-GAWK=${GAWK:-gawk}
-NIX_STORE=${NIX_STORE:-nix-store}
-
 failed_drvs=$(mktemp --tmpdir whatsupnix.XXXXXXXX)
 trap 'rm -f -- "$failed_drvs"' EXIT
 
 exec >&2
 
-$GAWK -v failed_drvs="$failed_drvs" '
+gawk -v failed_drvs="$failed_drvs" '
   match($0, /^builder for ‘(\/nix\/store\/[^’]+\.drv)’ failed/, m) {
     print m[1] >> failed_drvs
   }
-  { print $0 }
+  { print $0; fflush("/dev/stdout") }
 '
 
 case $# in
   0)
     print_log() {
-      NIX_PAGER= $NIX_STORE -l "$1"
+      NIX_PAGER= nix-store -l "$1"
     }
     ;;
   1)
diff --git a/lass/1systems/icarus.nix b/lass/1systems/icarus.nix
index b869a67a7..13c517e3b 100644
--- a/lass/1systems/icarus.nix
+++ b/lass/1systems/icarus.nix
@@ -6,9 +6,9 @@ with import <stockholm/lib>;
     ../.
     ../2configs/retiolum.nix
     ../2configs/hw/tp-x220.nix
-    ../2configs/baseX.nix
     ../2configs/git.nix
     ../2configs/exim-retiolum.nix
+    ../2configs/baseX.nix
     ../2configs/browsers.nix
     ../2configs/programs.nix
     ../2configs/fetchWallpaper.nix
@@ -22,9 +22,9 @@ with import <stockholm/lib>;
     loader.grub.enable = true;
     loader.grub.version = 2;
     loader.grub.device = "/dev/sda";
-    loader.grub.enableCryptodisk = true;
+    loader.grub.efiSupport = true;
 
-    initrd.luks.devices = [ { name = "luksroot"; device = "/dev/sda2"; } ];
+    initrd.luks.devices = [ { name = "luksroot"; device = "/dev/sda3"; } ];
     initrd.luks.cryptoModules = [ "aes" "sha512" "sha1" "xts" ];
     initrd.availableKernelModules = [ "xhci_hcd" "ehci_pci" "ahci" "usb_storage" ];
   };
@@ -34,11 +34,14 @@ with import <stockholm/lib>;
       fsType = "btrfs";
       options = ["defaults" "noatime" "ssd" "compress=lzo"];
     };
-    "/bku" = {
-      device = "/dev/mapper/pool-bku";
-      fsType = "btrfs";
-      options = ["defaults" "noatime" "ssd" "compress=lzo"];
+    "/boot" = {
+      device = "/dev/sda2";
     };
+    #"/bku" = {
+    #  device = "/dev/mapper/pool-bku";
+    #  fsType = "btrfs";
+    #  options = ["defaults" "noatime" "ssd" "compress=lzo"];
+    #};
     "/home" = {
       device = "/dev/mapper/pool-home";
       fsType = "btrfs";
diff --git a/lass/1systems/mors.nix b/lass/1systems/mors.nix
index b9ab54503..0bfd54515 100644
--- a/lass/1systems/mors.nix
+++ b/lass/1systems/mors.nix
@@ -96,49 +96,30 @@ with import <stockholm/lib>;
     loader.grub.enable = true;
     loader.grub.version = 2;
     loader.grub.device = "/dev/sda";
+    loader.grub.efiSupport = true;
 
-    initrd.luks.devices = [ { name = "luksroot"; device = "/dev/sda2"; } ];
+    initrd.luks.devices = [ { name = "luksroot"; device = "/dev/sda3"; } ];
     initrd.luks.cryptoModules = [ "aes" "sha512" "sha1" "xts" ];
     initrd.availableKernelModules = [ "xhci_hcd" "ehci_pci" "ahci" "usb_storage" ];
   };
   fileSystems = {
     "/" = {
-      device = "/dev/big/nix";
-      fsType = "ext4";
+      device = "/dev/mapper/pool-root";
+      fsType = "btrfs";
+      options = ["defaults" "noatime" "ssd" "compress=lzo"];
     };
-
     "/boot" = {
-      device = "/dev/sda1";
-    };
-
-    "/mnt/loot" = {
-      device = "/dev/big/loot";
-      fsType = "ext4";
+      device = "/dev/sda2";
     };
-
+    #"/bku" = {
+    #  device = "/dev/mapper/pool-bku";
+    #  fsType = "btrfs";
+    #  options = ["defaults" "noatime" "ssd" "compress=lzo"];
+    #};
     "/home" = {
-      device = "/dev/big/home";
-      fsType = "ext4";
-    };
-
-    "/home/lass" = {
-      device = "/dev/big/home-lass";
-      fsType = "ext4";
-    };
-
-    "/home/games/.local/share/Steam" = {
-      device = "/dev/big/steam";
-      fsType = "ext4";
-    };
-
-    "/home/virtual/virtual" = {
-      device = "/dev/big/virtual";
-      fsType = "ext4";
-    };
-
-    "/mnt/conf" = {
-      device = "/dev/big/conf";
-      fsType = "ext4";
+      device = "/dev/mapper/pool-home";
+      fsType = "btrfs";
+      options = ["defaults" "noatime" "ssd" "compress=lzo"];
     };
     "/tmp" = {
       device = "tmpfs";
diff --git a/lass/1systems/prism.nix b/lass/1systems/prism.nix
index af847333d..531dec9df 100644
--- a/lass/1systems/prism.nix
+++ b/lass/1systems/prism.nix
@@ -229,6 +229,10 @@ in {
         OnUnitInactiveSec = "2min";
         RandomizedDelaySec = "2min";
       };
+      krebs.repo-sync.repos.nixpkgs.timerConfig = {
+        OnBootSec = "90min";
+        OnUnitInactiveSec = "24h";
+      };
     }
     {
       lass.usershadow = {
diff --git a/lass/1systems/shodan.nix b/lass/1systems/shodan.nix
index dca616936..044e2ccf8 100644
--- a/lass/1systems/shodan.nix
+++ b/lass/1systems/shodan.nix
@@ -13,6 +13,7 @@ with import <stockholm/lib>;
     ../2configs/programs.nix
     ../2configs/fetchWallpaper.nix
     ../2configs/backups.nix
+    ../2configs/wine.nix
     #{
     #  users.extraUsers = {
     #    root = {
diff --git a/lass/2configs/buildbot-standalone.nix b/lass/2configs/buildbot-standalone.nix
index e765ddbb4..6c2a92c08 100644
--- a/lass/2configs/buildbot-standalone.nix
+++ b/lass/2configs/buildbot-standalone.nix
@@ -56,51 +56,6 @@ in {
           mode='full'
       )
 
-      # TODO: get nixpkgs/stockholm paths from krebs
-      env_lass = {
-        "LOGNAME": "lass",
-        "NIX_REMOTE": "daemon",
-        "dummy_secrets": "true",
-      }
-      env_makefu = {
-        "LOGNAME": "makefu",
-        "NIX_REMOTE": "daemon",
-        "dummy_secrets": "true",
-      }
-      env_nin = {
-        "LOGNAME": "nin",
-        "NIX_REMOTE": "daemon",
-        "dummy_secrets": "true",
-      }
-      env_shared = {
-        "LOGNAME": "shared",
-        "NIX_REMOTE": "daemon",
-        "dummy_secrets": "true",
-      }
-      env_tv = {
-        "LOGNAME": "tv",
-        "NIX_REMOTE": "daemon",
-        "dummy_secrets": "true",
-      }
-
-      # prepare nix-shell
-      # the dependencies which are used by the test script
-      deps = [
-        "gnumake",
-        "jq",
-        "nix",
-        "(import <stockholm>).pkgs.populate",
-        "openssh"
-      ]
-      # TODO: --pure , prepare ENV in nix-shell command:
-      #                   SSL_CERT_FILE,LOGNAME,NIX_REMOTE
-      nixshell = [
-        "nix-shell",
-        "-I", "/var/src",
-        "-I", "stockholm=.",
-        "-p"
-      ] + deps + [ "--run" ]
-
       # prepare addShell function
       def addShell(factory,**kwargs):
         factory.addStep(steps.ShellCommand(**kwargs))
@@ -110,30 +65,35 @@ in {
         f = util.BuildFactory()
         f.addStep(grab_repo)
 
-        def build_host(env, host):
-            addShell(f,name="build-{}".format(i),env=env,
-                command=nixshell + ["mkdir -p $HOME/$LOGNAME && touch $HOME/$LOGNAME/.populate; \
-                      echo $HOME; echo $LOGNAME; \
-                      test -e $HOME/$LOGNAME/nixpkgs || cp -r /var/src/nixpkgs $HOME/$LOGNAME/; \
-                      make NIX_PATH=$HOME/$LOGNAME:secrets=/var/src/stockholm/null test method=build \
-                          target=buildbotworker@${config.krebs.build.host.name}$HOME/$LOGNAME \
-                          system={}".format(host)]
+        def build_host(user, host):
+            addShell(f,
+                name="{}".format(i),
+                env={
+                  "LOGNAME": user,
+                  "NIX_PATH": "secrets=/var/src/stockholm/null:/var/src",
+                  "NIX_REMOTE": "daemon",
+                  "dummy_secrets": "true",
+                },
+                command=[
+                  "nix-shell", "--run",
+                  "test --system={} --target=buildbotworker@${config.krebs.build.host.name}$HOME/$LOGNAME".format(host)
+                ]
             )
 
-        for i in [ "alnus", "mu", "nomic", "wu", "xu", "zu" ]:
-            build_host(env_tv, i)
-
         for i in [ "mors", "uriel", "shodan", "icarus", "cloudkrebs", "echelon", "dishfire", "prism" ]:
-            build_host(env_lass, i)
+            build_host("lass", i)
 
         for i in [ "x", "wry", "vbob", "wbob", "shoney" ]:
-            build_host(env_makefu, i)
+            build_host("makefu", i)
 
         for i in [ "hiawatha", "onondaga" ]:
-            build_host(env_nin, i)
+            build_host("nin", i)
 
         for i in [ "test-minimal-deploy", "test-all-krebs-modules", "wolf", "test-centos7" ]:
-            build_host(env_shared, i)
+            build_host("shared", i)
+
+        for i in [ "alnus", "mu", "nomic", "wu", "xu", "zu" ]:
+            build_host("tv", i)
 
         bu.append(
             util.BuilderConfig(
diff --git a/lass/2configs/default.nix b/lass/2configs/default.nix
index d7deb3165..27b74a30b 100644
--- a/lass/2configs/default.nix
+++ b/lass/2configs/default.nix
@@ -79,7 +79,6 @@ with import <stockholm/lib>;
           if getEnv "dummy_secrets" == "true"
             then toString <stockholm/lass/2configs/tests/dummy-secrets>
             else "/home/lass/secrets/${host.name}";
-        stockholm.file = getEnv "PWD";
       };
     };
   };
diff --git a/lass/2configs/exim-smarthost.nix b/lass/2configs/exim-smarthost.nix
index b8d00e7d4..fd2f1f765 100644
--- a/lass/2configs/exim-smarthost.nix
+++ b/lass/2configs/exim-smarthost.nix
@@ -32,6 +32,8 @@ with import <stockholm/lib>;
       { from = "feed@lassul.us"; to = lass.mail; }
       { from = "art@lassul.us"; to = lass.mail; }
       { from = "irgendwas@lassul.us"; to = lass.mail; }
+      { from = "polo@lassul.us"; to = lass.mail; }
+      { from = "shack@lassul.us"; to = lass.mail; }
     ];
     system-aliases = [
       { from = "mailer-daemon"; to = "postmaster"; }
diff --git a/lass/2configs/mail.nix b/lass/2configs/mail.nix
index feb532709..e39c09b84 100644
--- a/lass/2configs/mail.nix
+++ b/lass/2configs/mail.nix
@@ -48,6 +48,8 @@ let
     set use_from=yes
     set envelope_from=yes
 
+    set sort=threads
+
     set index_format="%4C %Z %?GI?%GI& ? %[%d/%b]  %-16.15F %?M?(%3M)&     ? %s %> %?g?%g?"
 
     virtual-mailboxes \
diff --git a/lass/2configs/nixpkgs.nix b/lass/2configs/nixpkgs.nix
index 2adba34bb..151242e45 100644
--- a/lass/2configs/nixpkgs.nix
+++ b/lass/2configs/nixpkgs.nix
@@ -3,6 +3,6 @@
 {
   krebs.build.source.nixpkgs.git = {
     url = https://cgit.lassul.us/nixpkgs;
-    ref = "4847963";
+    ref = "2e983f1";
   };
 }
diff --git a/lass/2configs/websites/domsen.nix b/lass/2configs/websites/domsen.nix
index aaf311576..36ded3b30 100644
--- a/lass/2configs/websites/domsen.nix
+++ b/lass/2configs/websites/domsen.nix
@@ -61,6 +61,11 @@ in {
       "karlaskop.ubikmedia.de"
       "nb.ubikmedia.de"
       "youthtube.ubikmedia.de"
+      "weirdwednesday.ubikmedia.de"
+      "weirdwednesday.de"
+      "www.weirdwednesday.de"
+      "freemonkey.ubikmedia.de"
+      "jarugadesign.ubikmedia.de"
     ])
   ];
 
diff --git a/lass/5pkgs/init/default.nix b/lass/5pkgs/init/default.nix
index b484d2c38..679187531 100644
--- a/lass/5pkgs/init/default.nix
+++ b/lass/5pkgs/init/default.nix
@@ -19,14 +19,15 @@ pkgs.writeText "init" ''
 
   disk=${disk}
 
-  luksdev=${disk}2
+  luksdev=${disk}3
   luksmap=/dev/mapper/${luksmap}
 
   vgname=${vgname}
 
+  bootdev=/dev/sda2
+
   rootdev=/dev/mapper/${vgname}-root
   homedev=/dev/mapper/${vgname}-home
-  bkudev=/dev/mapper/${vgname}-bku
 
   #
   #generate keyfile
@@ -49,7 +50,8 @@ pkgs.writeText "init" ''
         mklabel gpt \
         mkpart no-fs 0 1024KiB \
         set 1 bios_grub on \
-        mkpart primary 1025KiB 100%
+        mkpart ESP fat32 1025KiB 1024MiB  set 2 boot on \
+        mkpart primary 1025MiB 100%
   fi
 
   if ! test "$(blkid -o value -s PARTLABEL "$luksdev")" = primary; then
@@ -78,9 +80,8 @@ pkgs.writeText "init" ''
 
   lvchange -a y /dev/mapper/"$vgname"
 
-  if ! test -e "$rootdev"; then lvcreate -L 100G -n root "$vgname"; fi
-  if ! test -e "$homedev"; then lvcreate -L 100G -n home "$vgname"; fi
-  if ! test -e "$bkudev"; then lvcreate -L 200G -n bku "$vgname"; fi
+  if ! test -e "$rootdev"; then lvcreate -L 7G -n root "$vgname"; fi
+  if ! test -e "$homedev"; then lvcreate -L 100M -n home "$vgname"; fi
 
   # lvchange -a n "$vgname"
 
@@ -89,6 +90,10 @@ pkgs.writeText "init" ''
   # formatting
   #
 
+  if ! test "$(blkid -o value -s TYPE "$bootdev")" = vfat; then
+    mkfs.vfat "$bootdev"
+  fi
+
   if ! test "$(blkid -o value -s TYPE "$rootdev")" = btrfs; then
     mkfs.btrfs "$rootdev"
   fi
@@ -97,22 +102,18 @@ pkgs.writeText "init" ''
     mkfs.btrfs "$homedev"
   fi
 
-  if ! test "$(blkid -o value -s TYPE "$bkudev")" = btrfs; then
-    mkfs.btrfs "$bkudev"
-  fi
-
 
   if ! test "$(lsblk -n -o MOUNTPOINT "$rootdev")" = /mnt; then
     mount "$rootdev" /mnt
   fi
+  if ! test "$(lsblk -n -o MOUNTPOINT "$bootdev")" = /mnt/boot; then
+    mkdir -m 0000 -p /mnt/boot
+    mount "$bootdev" /mnt/boot
+  fi
   if ! test "$(lsblk -n -o MOUNTPOINT "$homedev")" = /mnt/home; then
     mkdir -m 0000 -p /mnt/home
     mount "$homedev" /mnt/home
   fi
-  if ! test "$(lsblk -n -o MOUNTPOINT "$bkudev")" = /mnt/bku; then
-    mkdir -m 0000 -p /mnt/bku
-    mount "$bkudev" /mnt/bku
-  fi
 
   # umount -R /mnt
 
@@ -122,6 +123,7 @@ pkgs.writeText "init" ''
 
   nix-env -iA nixos.git
 
+  # TODO: get sentinal file from target_path
   mkdir -p /mnt/var/src
   touch /mnt/var/src/.populate
 
diff --git a/makefu/1systems/gum.nix b/makefu/1systems/gum.nix
index 519313f57..51761d3fd 100644
--- a/makefu/1systems/gum.nix
+++ b/makefu/1systems/gum.nix
@@ -24,7 +24,10 @@ in {
       # ../2configs/disable_v6.nix
       ../2configs/exim-retiolum.nix
       ../2configs/tinc/retiolum.nix
-      ../2configs/urlwatch.nix
+      ../2configs/urlwatch
+
+      # Security
+      ../2configs/sshd-totp.nix
 
       # Tools
       ../2configs/tools/core.nix
diff --git a/makefu/1systems/vbob.nix b/makefu/1systems/vbob.nix
index 7421125e4..d8e275bf6 100644
--- a/makefu/1systems/vbob.nix
+++ b/makefu/1systems/vbob.nix
@@ -8,14 +8,23 @@
       (toString <nixpkgs/nixos/modules/virtualisation/virtualbox-image.nix>)
       (toString <nixpkgs/nixos/modules/virtualisation/virtualbox-guest.nix>)
       ../2configs/main-laptop.nix #< base-gui
+      ../2configs/sshd-totp.nix
+
+      # Tools
+      ../2configs/tools/core.nix
+      ../2configs/tools/core-gui.nix
+      ../2configs/tools/dev.nix
+      ../2configs/tools/extra-gui.nix
+      ../2configs/tools/sec.nix
 
       # environment
       ../2configs/tinc/retiolum.nix
 
+      ../2configs/audio/jack-on-pulse.nix
+      ../2configs/audio/realtime-audio.nix
+
     ];
   networking.extraHosts = import (toString <secrets/extra-hosts.nix>);
-  # workaround for https://github.com/NixOS/nixpkgs/issues/16641
-  services.xserver.videoDrivers = lib.mkOverride 45 [ "virtualbox" "modesetting" ];
 
   nixpkgs.config.allowUnfree = true;
   fileSystems."/nix" = {
diff --git a/makefu/1systems/x.nix b/makefu/1systems/x.nix
index ee3a7bb1b..235862e85 100644
--- a/makefu/1systems/x.nix
+++ b/makefu/1systems/x.nix
@@ -13,61 +13,56 @@ with import <stockholm/lib>;
       ../2configs/tools/all.nix
       ../2configs/laptop-backup.nix
       ../2configs/dnscrypt.nix
+      ../2configs/avahi.nix
 
-      # testing
-      # ../2configs/openvpn/vpngate.nix
-      #../2configs/temp/share-samba.nix
-      # ../2configs/mediawiki.nix
-      # ../2configs/wordpress.nix
-      # ../2configs/nginx/public_html.nix
-      # ../2configs/nginx/icecult.nix
-
-      # ../2configs/elchos/irc-token.nix
-      # ../2configs/elchos/log.nix
-
-      #../2configs/elchos/search.nix
-      #../2configs/elchos/stats.nix
-      #../2configs/elchos/test/ftpservers.nix
-
-      # ../2configs/tinc/siem.nix
-      #../2configs/torrent.nix
-      # temporary modules
-
-      # ../2configs/torrent.nix
-      #../2configs/temp/elkstack.nix
-      # ../2configs/temp/sabnzbd.nix
+      # Debugging
+      # ../2configs/disable_v6.nix
 
+      # Testing
+      # ../2configs/lanparty/lancache.nix
+      # ../2configs/lanparty/lancache-dns.nix
+      # ../2configs/deployment/dirctator.nix
+      # ../2configs/vncserver.nix
+      # ../2configs/deployment/led-fader
+      # ../2configs/deployment/hound
 
       # development
       ../2configs/sources
 
       # Krebs
-      # ../2configs/disable_v6.nix
       ../2configs/tinc/retiolum.nix
 
       # applications
       ../2configs/exim-retiolum.nix
       ../2configs/mail-client.nix
       ../2configs/printer.nix
+      ../2configs/task-client.nix
+
+      # Virtualization
       ../2configs/virtualization.nix
+      ../2configs/docker.nix
       ../2configs/virtualization-virtualbox.nix
-      ../2configs/wwan.nix
-      ../2configs/rad1o.nix
 
-      # services
+      # Services
       ../2configs/git/brain-retiolum.nix
       ../2configs/tor.nix
       ../2configs/steam.nix
       # ../2configs/buildbot-standalone.nix
 
-      # hardware specifics are in here
+      # Hardware
       ../2configs/hw/tp-x230.nix
       ../2configs/hw/rtl8812au.nix
-      ../2configs/hw/stk1160.nix
+      ../2configs/hw/exfat-nofuse.nix
+      ../2configs/hw/wwan.nix
+      # ../2configs/hw/stk1160.nix
+      # ../2configs/rad1o.nix
 
-      # mount points
+      # Filesystem
       ../2configs/fs/sda-crypto-root-home.nix
 
+      # Security
+      ../2configs/sshd-totp.nix
+
     ];
 
   makefu.server.primary-itf = "wlp3s0";
@@ -76,10 +71,8 @@ with import <stockholm/lib>;
 
   nixpkgs.config.allowUnfree = true;
 
-  boot.extraModulePackages = [ config.boot.kernelPackages.exfat-nofuse ];
   environment.systemPackages = [ pkgs.passwdqc-utils ];
 
-  virtualisation.docker.enable = true;
 
   # configure pulseAudio to provide a HDMI sink as well
   networking.firewall.enable = true;
diff --git a/makefu/2configs/audio/jack-on-pulse.nix b/makefu/2configs/audio/jack-on-pulse.nix
index 49b61d5a2..a8ee05c7d 100644
--- a/makefu/2configs/audio/jack-on-pulse.nix
+++ b/makefu/2configs/audio/jack-on-pulse.nix
@@ -11,7 +11,10 @@ in
     package = pulse;
   };
 
-  environment.systemPackages = with pkgs; [ jack2Full ];
+  environment.systemPackages = with pkgs; [
+    jack2Full
+    jack_capture
+  ];
   # from http://anderspapitto.com/posts/2015-11-26-overtone-on-nixos-with-jack-and-pulseaudio.html
 
   systemd.user.services = {
diff --git a/makefu/2configs/audio/realtime-audio.nix b/makefu/2configs/audio/realtime-audio.nix
index fbeacd025..6cb18c45c 100644
--- a/makefu/2configs/audio/realtime-audio.nix
+++ b/makefu/2configs/audio/realtime-audio.nix
@@ -10,7 +10,7 @@ in
   musnix.enable = true;
   musnix.kernel.optimize = true;
   musnix.kernel.realtime = true;
-  # TODO: musnix.kernel.packages = pkgs.linuxPackages_latest_rt;
+  musnix.kernel.packages = pkgs.linuxPackages_latest_rt;
 
   users.users."${user}".extraGroups = [ "audio" ];
 }
diff --git a/makefu/2configs/default.nix b/makefu/2configs/default.nix
index bcd998826..0b4ef8909 100644
--- a/makefu/2configs/default.nix
+++ b/makefu/2configs/default.nix
@@ -22,7 +22,7 @@ with import <stockholm/lib>;
       user = config.krebs.users.makefu;
       source = let
           inherit (config.krebs.build) host user;
-          ref = "7a7c39c"; # unstable @ 2017-05-09 + graceful requests2 + logstash5
+          ref = "06734d1"; # unstable @ 2017-07-03 + graceful requests2 (a772c3aa)
       in {
         nixpkgs = if config.makefu.full-populate || (getEnv "dummy_secrets" == "true") then
           {
diff --git a/makefu/2configs/deployment/dirctator.nix b/makefu/2configs/deployment/dirctator.nix
index b8e61955d..4f2f8818d 100644
--- a/makefu/2configs/deployment/dirctator.nix
+++ b/makefu/2configs/deployment/dirctator.nix
@@ -25,6 +25,10 @@ in {
       stdout { codec => rubydebug }
       exec { command => "${runit} '%{message}" }
     '';
-    plugins = [ ];
+    extraSettings = ''
+      path.plugins: [ "${pkgs.logstash-output-exec}" ]
+    '';
+    ## NameError: `@path.plugins' is not allowable as an instance variable name
+    # plugins = [ pkgs.logstash-output-exec ];
   };
 }
diff --git a/makefu/2configs/deployment/led-fader.nix b/makefu/2configs/deployment/led-fader.nix
index 50023693d..678370c69 100644
--- a/makefu/2configs/deployment/led-fader.nix
+++ b/makefu/2configs/deployment/led-fader.nix
@@ -31,6 +31,7 @@ in {
     };
     # after = [ (lib.optional config.services.mosqitto.enable "mosquitto.service") ];
     wantedBy = [ "multi-user.target"  ];
+    after = [ "network-online.target"  ];
     serviceConfig = {
       # User = "nobody"; # need a user with permissions to run nix-shell
       ExecStart = "${pkg}/bin/ampel 4 ${pkg}/share/times.json";
diff --git a/makefu/2configs/docker.nix b/makefu/2configs/docker.nix
new file mode 100644
index 000000000..98fd980cc
--- /dev/null
+++ b/makefu/2configs/docker.nix
@@ -0,0 +1,4 @@
+{...}:
+{
+  virtualisation.docker.enable = true;
+}
diff --git a/makefu/2configs/hw/exfat-nofuse.nix b/makefu/2configs/hw/exfat-nofuse.nix
new file mode 100644
index 000000000..ca3485e9f
--- /dev/null
+++ b/makefu/2configs/hw/exfat-nofuse.nix
@@ -0,0 +1,4 @@
+{ config, ... }:
+{
+  boot.extraModulePackages = [ config.boot.kernelPackages.exfat-nofuse ];
+}
diff --git a/makefu/2configs/hw/stk1160.nix b/makefu/2configs/hw/stk1160.nix
index b4d033d76..e73741e26 100644
--- a/makefu/2configs/hw/stk1160.nix
+++ b/makefu/2configs/hw/stk1160.nix
@@ -1,9 +1,8 @@
 { pkgs, ... }:
 {
   # TODO: un-pin linuxPackages somehow
-  boot.kernelPackages = builtins.trace "Warning: overriding kernel Packages with 4.9" pkgs.linuxPackages_4_9;
   nixpkgs.config.packageOverrides = pkgs: {
-    linux_4_9 = pkgs.linux_4_9.override {
+    linux_latest = pkgs.linux_latest.override {
         extraConfig = ''
           MEDIA_ANALOG_TV_SUPPORT y
           VIDEO_STK1160_COMMON m
diff --git a/makefu/2configs/hw/tp-x230.nix b/makefu/2configs/hw/tp-x230.nix
index 2de32dd94..c705b52a7 100644
--- a/makefu/2configs/hw/tp-x230.nix
+++ b/makefu/2configs/hw/tp-x230.nix
@@ -44,8 +44,7 @@ with import <stockholm/lib>;
   '';
 
   # enable HDMI output switching with pulseaudio
-  hardware.pulseaudio.configFile = pkgs.writeText "pulse-default-pa" ''
-    ${builtins.readFile "${config.hardware.pulseaudio.package.out}/etc/pulse/default.pa"}
+  hardware.pulseaudio.extraConfig = ''
     load-module module-alsa-sink device=hw:0,3 sink_properties=device.description="HDMIOutput" sink_name="HDMI"
   '';
 
diff --git a/makefu/2configs/wwan.nix b/makefu/2configs/hw/wwan.nix
index 0eb0c97d7..0eb0c97d7 100644
--- a/makefu/2configs/wwan.nix
+++ b/makefu/2configs/hw/wwan.nix
diff --git a/makefu/2configs/lanparty/lancache-dns.nix b/makefu/2configs/lanparty/lancache-dns.nix
new file mode 100644
index 000000000..4b4ebf0a0
--- /dev/null
+++ b/makefu/2configs/lanparty/lancache-dns.nix
@@ -0,0 +1,55 @@
+{ pkgs, lib, config, ... }:
+with import <stockholm/lib>;
+let
+  # see https://github.com/zeropingheroes/lancache for full docs
+  lancache-dns = pkgs.stdenv.mkDerivation rec {
+    name = "lancache-dns-2017-06-28";
+    src = pkgs.fetchFromGitHub {
+      # forked: https://github.com/zeropingheroes/lancache-dns
+      repo = "lancache-dns";
+      owner = "zeropingheroes";
+      rev = "420aa62";
+      sha256 = "0ik7by7ripdv2avyy5kk9jp1i7rz9ksc8xmg7n9iik365q9pv94m";
+    };
+    phases = [ "unpackPhase" "installPhase" ];
+    # here we can chance to edit `includes/proxy-cache-paths.conf`
+    installPhase = ''
+      mkdir -p $out
+      cp -r * $out/
+    '';
+  };
+  stateDir = "/var/lib/unbound";
+  user = "unbound";
+  upstream-server = "8.8.8.8";
+in {
+  services.unbound = {
+    enable = true;
+    allowedAccess = [ "10.0.0.0/8" "172.16.0.0/12" "192.168.0.0/16" ];
+    interfaces = ["0.0.0.0" "::" ];
+    forwardAddresses = [ upstream-server ];
+    extraConfig = ''
+      include: "${stateDir}/lancache/*.conf"
+    '';
+  };
+  services.dnscrypt-proxy.enable = lib.mkForce false;
+  virtualisation.libvirtd.enable = lib.mkForce false;
+  systemd.services.dns-lancache-prepare = {
+      wantedBy = [ "unbound.service" ];
+      before = [ "unbound.service" ];
+      after = [ "network-online.target" ];
+      partOf= [ "unbound.service" ];
+
+      path = [ pkgs.gawk pkgs.iproute pkgs.gnused ];
+      script = ''
+        set -xeu
+        current_ip=$(ip route get 8.8.8.8 | awk '/8.8.8.8/ {print $NF}')
+        old_ip=10.1.1.250
+        mkdir -p ${stateDir}
+        rm -rvf ${stateDir}/lancache
+        cp -r ${lancache-dns}/upstreams-available ${stateDir}/lancache
+        sed -i "s/$old_ip/$current_ip/g" ${stateDir}/lancache/*.conf
+        chown -R unbound ${stateDir}
+        '';
+    };
+  networking.firewall.allowedUDPPorts = [ 53 ];
+}
diff --git a/makefu/2configs/lanparty/lancache.nix b/makefu/2configs/lanparty/lancache.nix
new file mode 100644
index 000000000..3df2e3f59
--- /dev/null
+++ b/makefu/2configs/lanparty/lancache.nix
@@ -0,0 +1,74 @@
+{ pkgs, lib, config, ... }:
+with import <stockholm/lib>;
+let
+  # see https://github.com/zeropingheroes/lancache for full docs
+  lancache= pkgs.stdenv.mkDerivation rec {
+    name = "lancache-2017-06-26";
+    src = pkgs.fetchFromGitHub {
+      # origin: https://github.com/multiplay/lancache
+      # forked: https://github.com/zeropingheroes/lancache
+      repo = "lancache";
+      owner = "zeropingheroes";
+      rev = "143f7bb";
+      sha256 = "1ra4l7qz3k231j5wabr89s5hh80n1kk8vgd3dsh0xx5mdpjhvdl6";
+    };
+    phases = [ "unpackPhase" "installPhase" ];
+    # here we can chance to edit `includes/proxy-cache-paths.conf`
+    installPhase = ''
+      mkdir -p $out
+      cp -r * $out/
+      sed -i -e 's/^\(user\).*/\1 ${cfg.user} ${cfg.group};/' \
+             -e '1 idaemon off;' \
+              $out/nginx.conf
+    '';
+  };
+  cfg = {
+    group = "nginx-lancache";
+    user = "nginx-lancache";
+    statedir = "/var/lancache";
+    package = pkgs.stdenv.lib.overrideDerivation pkgs.nginx (old:{
+      configureFlags = old.configureFlags ++ [
+        "--with-http_slice_module"
+        "--with-stream"
+        "--with-pcre"
+        ];
+    });
+  };
+in {
+  systemd.services.nginx-lancache = {
+    description = "Nginx lancache Server";
+    after = [ "network.target" ];
+    wantedBy = [ "multi-user.target" ];
+    restartIfChanged = true;
+
+    preStart = ''
+      mkdir -p ${cfg.statedir} && cd ${cfg.statedir}
+      PATH_CACHE=$PATH_BASE/cache
+      PATH_LOGS=$PATH_BASE/logs
+
+      mkdir -p cache/{installers,tmp} logs
+      rm -f conf; ln -s ${lancache} conf
+      chown -R ${cfg.user}:${cfg.group} .
+      '';
+    serviceConfig = {
+      ExecStart = "${cfg.package}/bin/nginx  -p ${cfg.statedir}";
+      ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
+      Restart = "always";
+      RestartSec = "10s";
+      StartLimitInterval = "1min";
+    };
+  };
+
+  environment.etc.nginx.source = lancache;
+    users.extraUsers = (singleton
+  { name = cfg.user;
+    group = cfg.group;
+    uid = genid cfg.group;
+  });
+
+  users.extraGroups = (singleton
+    { name = "${cfg.group}";
+      gid = genid cfg.group;
+  });
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+}
diff --git a/makefu/2configs/sources/musnix.nix b/makefu/2configs/sources/musnix.nix
index d02dd4a48..a5be303e9 100644
--- a/makefu/2configs/sources/musnix.nix
+++ b/makefu/2configs/sources/musnix.nix
@@ -1,6 +1,6 @@
 {
   krebs.build.source.musnix.git = {
     url = https://github.com/musnix/musnix.git;
-    ref = "37a8378";
+    ref = "f0ec1f3";
   };
 }
diff --git a/makefu/2configs/sshd-totp.nix b/makefu/2configs/sshd-totp.nix
new file mode 100644
index 000000000..f9984e245
--- /dev/null
+++ b/makefu/2configs/sshd-totp.nix
@@ -0,0 +1,18 @@
+{ pkgs, ... }:
+# Enables second factor for ssh password login
+
+## Usage:
+#  gen-oath-safe <username> totp
+## scan the qrcode with google authenticator (or FreeOTP)
+## copy last line into secrets/<host>/users.oath (chmod 700)
+{
+  security.pam.oath = {
+    # enabling it will make it a requisite of `all` services
+    # enable = true;
+    digits = 6;
+    # TODO assert existing
+    usersFile = (toString <secrets>) + "/users.oath";
+  };
+  # I want TFA only active for sshd with password-auth
+  security.pam.services.sshd.oathAuth = true;
+}
diff --git a/makefu/2configs/task-client.nix b/makefu/2configs/task-client.nix
new file mode 100644
index 000000000..330616f4a
--- /dev/null
+++ b/makefu/2configs/task-client.nix
@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+{
+  krebs.per-user.makefu.packages = [
+    pkgs.taskwarrior
+  ];
+
+  environment.shellAliases = {
+    tshack = "task project:shack";
+    twork = "task project:soc";
+    tpki = "task project:pki";
+    tkrebs = "task project:krebs";
+    t = "task project: ";
+  };
+}
diff --git a/makefu/2configs/tools/dev.nix b/makefu/2configs/tools/dev.nix
index 4fe7f8bf4..42006eb22 100644
--- a/makefu/2configs/tools/dev.nix
+++ b/makefu/2configs/tools/dev.nix
@@ -12,5 +12,8 @@
     cac-api
     cac-panel
     ovh-zone
+    whatsupnix
+    brain
+    gen-oath-safe
   ];
 }
diff --git a/makefu/2configs/tools/extra-gui.nix b/makefu/2configs/tools/extra-gui.nix
index 56cdccd1f..1e68e935c 100644
--- a/makefu/2configs/tools/extra-gui.nix
+++ b/makefu/2configs/tools/extra-gui.nix
@@ -2,13 +2,16 @@
 
 {
   krebs.per-user.makefu.packages = with pkgs;[
+    # media
     gimp
     inkscape
     libreoffice
-    saleae-logic
     skype
     synergy
     tdesktop
     virtmanager
+    # Dev
+    saleae-logic
+    arduino-user-env
   ];
 }
diff --git a/makefu/2configs/urlwatch.nix b/makefu/2configs/urlwatch.nix
deleted file mode 100644
index 9493b2b7b..000000000
--- a/makefu/2configs/urlwatch.nix
+++ /dev/null
@@ -1,27 +0,0 @@
-{ config, lib, ... }:
-
-{
-  krebs.urlwatch = {
-    enable = true;
-    mailto = config.krebs.users.makefu.mail;
-    onCalendar = "*-*-* 05:00:00";
-    urls = [
-      ## nixpkgs maintenance
-      https://api.github.com/repos/ovh/python-ovh/tags
-      https://api.github.com/repos/embray/d2to1/tags
-      https://api.github.com/repos/Mic92/vicious/tags
-      https://pypi.python.org/simple/bepasty/
-      https://pypi.python.org/simple/xstatic/
-      http://guest:derpi@cvs2svn.tigris.org/svn/cvs2svn/tags/
-      http://ftp.debian.org/debian/pool/main/a/apt-cacher-ng/
-      https://github.com/amadvance/snapraid/releases.atom
-      https://erdgeist.org/gitweb/opentracker/info/refs?service=git-upload-pack
-      https://api.github.com/repos/embray/d2to1/tags
-      https://api.github.com/repos/dorimanx/exfat-nofuse/commits
-      https://api.github.com/repos/dorimanx/exfat-nofuse/tags
-      https://api.github.com/repos/radare/radare2/tags
-      https://api.github.com/repos/rapid7/metasploit-framework/tags
-    ];
-  };
-}
-
diff --git a/makefu/2configs/urlwatch/default.nix b/makefu/2configs/urlwatch/default.nix
new file mode 100644
index 000000000..f17bcdc3a
--- /dev/null
+++ b/makefu/2configs/urlwatch/default.nix
@@ -0,0 +1,45 @@
+{ config, lib, ... }:
+
+{
+  krebs.urlwatch = {
+    enable = true;
+    mailto = config.krebs.users.makefu.mail;
+    onCalendar = "*-*-* 05:00:00";
+    hooksFile = ./hook.py;
+    urls = [
+      ## nixpkgs maintenance
+      # github 
+      ## No rate limit
+      https://github.com/amadvance/snapraid/releases.atom
+      https://github.com/radare/radare2/releases.atom
+      https://github.com/ovh/python-ovh/releases.atom
+      https://github.com/embray/d2to1/releases.atom
+      https://github.com/Mic92/vicious/releases.atom
+      https://github.com/embray/d2to1/releases.atom
+      https://github.com/dorimanx/exfat-nofuse/releases.atom
+      https://github.com/rapid7/metasploit-framework/releases.atom
+      ## rate limited
+      # https://api.github.com/repos/dorimanx/exfat-nofuse/commits
+      # https://api.github.com/repos/mcepl/gen-oath-safe/commits
+      https://api.github.com/repos/naim94a/udpt/commits
+      https://api.github.com/repos/dirkvdb/ps3netsrv--/commits
+
+      # pypi
+      https://pypi.python.org/simple/bepasty/
+      https://pypi.python.org/simple/xstatic/
+      https://pypi.python.org/simple/devpi-client/
+      # weird shit
+      http://guest:derpi@cvs2svn.tigris.org/svn/cvs2svn/tags/
+      http://ftp.debian.org/debian/pool/main/a/apt-cacher-ng/
+      https://erdgeist.org/gitweb/opentracker/info/refs?service=git-upload-pack
+      https://git.tasktools.org/TM/taskd/info/refs?service=git-upload-pack
+
+      {
+        url = https://newellrubbermaid.secure.force.com/dymopkb/articles/en_US/FAQ/Dymo-Drivers-and-Downloads/?l=en_US&c=Segment:Dymo&fs=Search&pn=1 ;
+        filter = "grep:Software/Linux/dymo-cups-drivers";
+      }
+      # TODO: dymo cups
+    ];
+  };
+}
+
diff --git a/makefu/2configs/urlwatch/hook.py b/makefu/2configs/urlwatch/hook.py
new file mode 100644
index 000000000..7d9282c7e
--- /dev/null
+++ b/makefu/2configs/urlwatch/hook.py
@@ -0,0 +1,16 @@
+import logging
+logging.basicConfig(level=logging.INFO)
+log = logging.getLogger()
+log.setLevel(level=logging.INFO)
+
+import re
+import json
+
+from urlwatch import filters
+
+
+class JsonFilter(filters.RegexMatchFilter):
+    MATCH = {'url': re.compile('https?://api.github.com/.*')}
+
+    def filter(self, data):
+        return json.dumps(json.loads(data),indent=2,sort_keys=True)
diff --git a/makefu/5pkgs/arduino-user-env/default.nix b/makefu/5pkgs/arduino-user-env/default.nix
new file mode 100644
index 000000000..7339c50a2
--- /dev/null
+++ b/makefu/5pkgs/arduino-user-env/default.nix
@@ -0,0 +1,35 @@
+{ lib, pkgs, ... }: let
+
+#TODO: make sure env exists prior to running
+env_nix = pkgs.writeText "env.nix" ''
+  { pkgs ? import <nixpkgs> {} }:
+
+  (pkgs.buildFHSUserEnv {
+    name = "arduino-user-env";
+    targetPkgs = pkgs: with pkgs; [
+      coreutils
+    ];
+    multiPkgs = pkgs: with pkgs; [
+      arduino
+      alsaLib
+      zlib
+      xorg.libXxf86vm
+      curl
+      openal
+      openssl_1_0_2
+      xorg.libXext
+      xorg.libX11
+      xorg.libXrandr
+      xorg.libXcursor
+      xorg.libXinerama
+      xorg.libXi
+      mesa_glu
+    ];
+    runScript = "zsh";
+  }).env
+'';
+
+
+in pkgs.writeDashBin "arduino-user-env" ''
+  nix-shell ${env_nix}
+''
diff --git a/makefu/5pkgs/gen-oath-safe/default.nix b/makefu/5pkgs/gen-oath-safe/default.nix
new file mode 100644
index 000000000..245e65174
--- /dev/null
+++ b/makefu/5pkgs/gen-oath-safe/default.nix
@@ -0,0 +1,37 @@
+{ coreutils, makeWrapper, openssl, libcaca, qrencode, fetchFromGitHub, yubikey-manager, python, stdenv, ... }:
+
+stdenv.mkDerivation {
+  name = "geno-oath-safe-2017-06-30";
+  src = fetchFromGitHub {
+    owner = "mcepl";
+    repo = "gen-oath-safe";
+    rev = "fb53841";
+    sha256 = "0018kqmhg0861r5xkbis2a1rx49gyn0dxcyj05wap5ms7zz69m0m";
+  };
+
+  phases = [
+    "unpackPhase"
+    "installPhase"
+    "fixupPhase"
+  ];
+
+  buildInputs = [ makeWrapper ];
+
+  installPhase =
+    let
+      path = stdenv.lib.makeBinPath [
+        coreutils
+        openssl
+        qrencode
+        yubikey-manager
+        libcaca
+        python
+      ];
+    in
+    ''
+      mkdir -p $out/bin
+      cp gen-oath-safe $out/bin/
+      wrapProgram $out/bin/gen-oath-safe \
+        --prefix PATH : ${path}
+    '';
+}
diff --git a/shared/2configs/default.nix b/shared/2configs/default.nix
index 894f8a997..398f125e4 100644
--- a/shared/2configs/default.nix
+++ b/shared/2configs/default.nix
@@ -11,7 +11,7 @@ with import <stockholm/lib>;
     nixos-config.symlink = "stockholm/${user.name}/1systems/${host.name}.nix";
     nixpkgs.git = {
       url = https://github.com/NixOS/nixpkgs;
-      ref = "58e227052d40021d82d015f3f8da011ae54ea430"; # nixos-17.03 @ 2017-05-24
+      ref = "72c9ed78d0b1d9d5f531805ddf5bf06bfd447614"; # nixos-17.03 @ 2017-06-17
     };
     secrets.file =
       if getEnv "dummy_secrets" == "true"
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 000000000..3e7ba81c1
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,186 @@
+let
+  lib = import ./lib;
+  pkgs = import <nixpkgs> { overlays = [(import ./krebs/5pkgs)]; };
+
+  # usage: deploy --system=SYSTEM [--target=TARGET]
+  cmds.deploy = pkgs.writeDash "cmds.deploy" ''
+    set -efu
+
+    command=deploy
+    . ${init.args}
+    \test -n "''${target-}" || target=$system
+    . ${init.env}
+
+    exec ${utils.deploy}
+  '';
+
+  # usage: test --system=SYSTEM --target=TARGET
+  cmds.test = pkgs.writeDash "cmds.test" /* sh */ ''
+    set -efu
+
+    command=test
+    . ${init.args}
+    . ${init.env}
+
+    export dummy_secrets=true
+    exec ${utils.build} config.system.build.toplevel
+  '';
+
+  init.args = pkgs.writeText "init.args" /* sh */ ''
+    args=$(${pkgs.utillinux}/bin/getopt -n "$command" -s sh \
+        -o s:t: \
+        -l system:,target: \
+        -- "$@")
+    if \test $? != 0; then exit 1; fi
+    eval set -- "$args"
+    while :; do case $1 in
+      -s|--system) system=$2; shift 2;;
+      -t|--target) target=$2; shift 2;;
+      --) shift; break;;
+    esac; done
+    for arg; do echo "$command: bad argument: $arg" >&2; done
+    if \test $# != 0; then exit 2; fi
+  '';
+
+  init.env = pkgs.writeText "init.env" /* sh */ ''
+    config=''${config-$LOGNAME/1systems/$system.nix}
+
+    export config
+    export system
+    export target
+
+    export target_object="$(${init.env.parsetarget} $target)"
+    export target_user="$(echo $target_object | ${pkgs.jq}/bin/jq -r .user)"
+    export target_host="$(echo $target_object | ${pkgs.jq}/bin/jq -r .host)"
+    export target_port="$(echo $target_object | ${pkgs.jq}/bin/jq -r .port)"
+    export target_path="$(echo $target_object | ${pkgs.jq}/bin/jq -r .path)"
+    export target_local="$(echo $target_object | ${pkgs.jq}/bin/jq -r .local)"
+
+    if \test "''${using_proxy-}" != true; then
+      ${init.env.populate}
+      if \test "$target_local" != true; then
+        exec ${init.env.proxy} "$command" "$@"
+      fi
+    fi
+  '' // {
+    parsetarget = pkgs.writeDash "init.env.parsetarget" ''
+      set -efu
+      exec ${pkgs.jq}/bin/jq \
+          -enr \
+          --arg target "$1" \
+          -f ${init.env.parsetarget.jq}
+    '' // {
+      jq = pkgs.writeText "init.env.parsetarget.jq" ''
+        def when(c; f): if c then f else . end;
+        def capturesDef(i; v): .captures[i].string | when(. == null; v);
+        $target | match("^(?:([^@]+)@)?([^:/]+)?(?::([0-9]+))?(/.*)?$") | {
+          user: capturesDef(0; "root"),
+          host: capturesDef(1; env.system),
+          port: capturesDef(2; "22"),
+          path: capturesDef(3; "/var/src"),
+        } | . + {
+          local: (.user == env.LOGNAME and .host == env.HOSTNAME),
+        }
+      '';
+    };
+    populate = pkgs.writeDash "init.env.populate" ''
+      set -efu
+      ${pkgs.nix}/bin/nix-instantiate \
+          --eval \
+          --json \
+          --readonly-mode \
+          --show-trace \
+          --strict \
+          -I nixos-config="$config" \
+          -E 'with import <stockholm>; config.krebs.build.source' \
+        |
+      ${pkgs.populate}/bin/populate \
+          "$target_user@$target_host:$target_port$target_path" \
+        >&2
+    '';
+    proxy = pkgs.writeDash "init.env.proxy" ''
+      set -efu
+      q() {
+        ${pkgs.jq}/bin/jq -nr --arg x "$*" '$x | @sh "\(.)"'
+      }
+      exec ${pkgs.openssh}/bin/ssh \
+        "$target_user@$target_host" -p "$target_port" \
+        cd "$target_path/stockholm" \; \
+        NIX_PATH=$(q "$target_path") \
+        STOCKHOLM_VERSION=$STOCKHOLM_VERSION \
+        nix-shell \
+            --command $(q \
+                config=$config \
+                system=$system \
+                target=$target \
+                using_proxy=true \
+                "$*"
+            )
+    '';
+  };
+
+  utils.build = pkgs.writeDash "utils.build" ''
+    set -efu
+    ${pkgs.nix}/bin/nix-build \
+        -Q \
+        --no-out-link \
+        --show-trace \
+        -E "with import <stockholm>; $1" \
+        -I "$target_path" \
+      2>&1 |
+    ${pkgs.whatsupnix}/bin/whatsupnix
+  '';
+
+  utils.deploy = pkgs.writeDash "utils.deploy" ''
+    set -efu
+    PATH=/run/current-system/sw/bin nixos-rebuild switch \
+        -Q \
+        --show-trace \
+        -I "$target_path" \
+      2>&1 |
+    ${pkgs.whatsupnix}/bin/whatsupnix
+  '';
+
+  shell.get-version = pkgs.writeDash "shell.get-version" ''
+    set -efu
+    version=git.$(${pkgs.git}/bin/git describe --always --dirty)
+    case $version in (*-dirty)
+      version=$version@$HOSTNAME
+    esac
+    date=$(${pkgs.coreutils}/bin/date +%y.%m)
+    echo "$date.$version"
+  '';
+
+  shell.cmdspkg = pkgs.writeOut "shell.cmdspkg" (lib.mapAttrs' (name: link:
+    lib.nameValuePair "/bin/${name}" { inherit link; }
+  ) cmds);
+
+in pkgs.stdenv.mkDerivation {
+  name = "stockholm";
+  shellHook = /* sh */ ''
+    export NIX_PATH="stockholm=$PWD''${NIX_PATH+:$NIX_PATH}"
+    export PATH=${lib.makeBinPath [
+      shell.cmdspkg
+    ]}
+
+    eval "$(declare -F | ${pkgs.gnused}/bin/sed s/declare/unset/)"
+    shopt -u no_empty_cmd_completion
+    unalias -a
+
+    enable -n \
+        . [ alias bg bind break builtin caller cd command compgen complete \
+        compopt continue dirs disown eval exec false fc fg getopts hash \
+        help history jobs kill let local logout mapfile popd printf pushd \
+        pwd read readarray readonly shift source suspend test times trap \
+        true typeset ulimit umask unalias wait
+
+    exitHandler() {
+      :
+    }
+
+    export HOSTNAME="$(${pkgs.nettools}/bin/hostname)"
+    export STOCKHOLM_VERSION="''${STOCKHOLM_VERSION-$(${shell.get-version})}"
+
+    PS1='\[\e[38;5;162m\]\w\[\e[0m\] '
+  '';
+}
diff --git a/tv/1systems/alnus.nix b/tv/1systems/alnus.nix
index 4bc0318e8..ef2a0500f 100644
--- a/tv/1systems/alnus.nix
+++ b/tv/1systems/alnus.nix
@@ -58,7 +58,7 @@ with import <stockholm/lib>;
   krebs.build = {
     host = config.krebs.hosts.alnus;
     user = mkForce config.krebs.users.dv;
-    source.nixpkgs.git.ref = mkForce "e924319cb6c74aa2a9c943eddeb0caef79db01bc";
+    source.nixpkgs.git.ref = mkForce "9b948ea439ddbaa26740ce35543e7e35d2aa6d18";
   };
 
   networking.networkmanager.enable = true;
diff --git a/tv/1systems/cd.nix b/tv/1systems/cd.nix
index 108006f34..9f2cec574 100644
--- a/tv/1systems/cd.nix
+++ b/tv/1systems/cd.nix
@@ -25,7 +25,6 @@ with import <stockholm/lib>;
   };
 
   environment.systemPackages = with pkgs; [
-    htop
     iftop
     iotop
     iptables
diff --git a/tv/1systems/mu.nix b/tv/1systems/mu.nix
index fcd0a2178..3f3b2c2f4 100644
--- a/tv/1systems/mu.nix
+++ b/tv/1systems/mu.nix
@@ -79,15 +79,12 @@ with import <stockholm/lib>;
     gimp
     xsane
     firefoxWrapper
-    chromiumDev
+    chromium
     skype
     libreoffice
-    kde4.l10n.de
-    kde4.plasma-nm
     pidgin-with-plugins
     pidginotr
 
-    kde4.print_manager
     #foomatic_filters
     #gutenprint
     #cups_pdf_filter
@@ -101,7 +98,7 @@ with import <stockholm/lib>;
 
   security.wrappers = {
     sendmail.source = "${pkgs.exim}/bin/sendmail"; # for cron
-    slock.slock = "${pkgs.slock}/bin/slock";
+    slock.source = "${pkgs.slock}/bin/slock";
   };
 
   security.pam.loginLimits = [
@@ -138,7 +135,9 @@ with import <stockholm/lib>;
     twoFingerScroll = true;
   };
 
-  services.xserver.desktopManager.kde4.enable = true;
+  services.xserver.desktopManager.plasma5 = {
+    enable = true;
+  };
   services.xserver.displayManager.auto = {
     enable = true;
     user = "vv";
diff --git a/tv/1systems/wu.nix b/tv/1systems/wu.nix
index 60f9fa100..4b3bf8538 100644
--- a/tv/1systems/wu.nix
+++ b/tv/1systems/wu.nix
@@ -31,7 +31,6 @@ with import <stockholm/lib>;
         get
         gnupg1compat
         haskellPackages.hledger
-        htop
         jq
         mkpasswd
         netcat
diff --git a/tv/1systems/xu.nix b/tv/1systems/xu.nix
index 3add01748..d82f45ac0 100644
--- a/tv/1systems/xu.nix
+++ b/tv/1systems/xu.nix
@@ -34,7 +34,6 @@ with import <stockholm/lib>;
         file
         gnupg1compat
         haskellPackages.hledger
-        htop
         jq
         krebszones
         mkpasswd
diff --git a/tv/1systems/zu.nix b/tv/1systems/zu.nix
index 5552ef065..4fae3ca75 100644
--- a/tv/1systems/zu.nix
+++ b/tv/1systems/zu.nix
@@ -36,7 +36,6 @@ with import <stockholm/lib>;
         file
         gnupg1compat
         haskellPackages.hledger
-        htop
         jq
         mkpasswd
         netcat
diff --git a/tv/2configs/default.nix b/tv/2configs/default.nix
index 4a1247ef5..bab1c72b6 100644
--- a/tv/2configs/default.nix
+++ b/tv/2configs/default.nix
@@ -1,20 +1,20 @@
-{ config, lib, pkgs, ... }:
-
 with import <stockholm/lib>;
-
-{
+{ config, lib, pkgs, ... }: let
+  builder = if getEnv "dummy_secrets" == "true"
+              then "buildbot"
+              else "tv";
+in {
   krebs.enable = true;
 
   krebs.build = {
     user = config.krebs.users.tv;
     source = let inherit (config.krebs.build) host; in {
       nixos-config.symlink = "stockholm/tv/1systems/${host.name}.nix";
-      secrets.file =
-        if getEnv "dummy_secrets" == "true"
-          then toString <stockholm/tv/dummy_secrets>
-          else "/home/tv/secrets/${host.name}";
+      secrets.file = getAttr builder {
+        buildbot = toString <stockholm/tv/dummy_secrets>;
+        tv = "/home/tv/secrets/${host.name}";
+      };
       secrets-common.file = "/home/tv/secrets/common";
-      stockholm.file = "/home/tv/stockholm";
       nixpkgs.git = {
         url = https://github.com/NixOS/nixpkgs;
         ref = "412b0a17aa2975e092c7ab95a38561c5f82908d4"; # nixos-17.03
@@ -158,9 +158,10 @@ with import <stockholm/lib>;
     {
       environment.systemPackages = [
         pkgs.get
+        pkgs.htop
         pkgs.krebspaste
-        pkgs.ovh-zone
         pkgs.nix-prefetch-scripts
+        pkgs.ovh-zone
         pkgs.push
       ];
     }
diff --git a/tv/2configs/htop.nix b/tv/2configs/htop.nix
index 5d7e0272b..d7d2d7bfd 100644
--- a/tv/2configs/htop.nix
+++ b/tv/2configs/htop.nix
@@ -7,7 +7,6 @@ with import <stockholm/lib>;
     htop = pkgs.symlinkJoin {
       name = "htop";
       paths = [
-        super.htop
         (pkgs.writeDashBin "htop" ''
           export HTOPRC=${pkgs.writeText "htoprc" ''
             fields=0 48 17 18 38 39 40 2 46 47 49 1
@@ -37,6 +36,7 @@ with import <stockholm/lib>;
           ''}
           exec ${super.htop}/bin/htop "$@"
         '')
+        super.htop
       ];
     };
   };
diff --git a/tv/2configs/vim.nix b/tv/2configs/vim.nix
index 93ed46dc8..a3af93772 100644
--- a/tv/2configs/vim.nix
+++ b/tv/2configs/vim.nix
@@ -300,7 +300,6 @@ let {
   vim-wrapper = pkgs.symlinkJoin {
     name = "vim";
     paths = [
-      pkgs.vim_configurable
       (pkgs.writeDashBin "vim" ''
         set -efu
         (umask 0077; exec ${pkgs.coreutils}/bin/mkdir -p ${toString mkdirs})
@@ -310,6 +309,7 @@ let {
         # vim-orgmode needs Python, thus vim_configurable instead of just vim
         exec ${pkgs.vim_configurable}/bin/vim "$@"
       '')
+      pkgs.vim_configurable
     ];
   };
 
diff --git a/tv/5pkgs/default.nix b/tv/5pkgs/default.nix
index ae47ab0f3..284e42a79 100644
--- a/tv/5pkgs/default.nix
+++ b/tv/5pkgs/default.nix
@@ -1,40 +1,54 @@
-{ config, pkgs, ... }:
 with import <stockholm/lib>;
-{
-  nixpkgs.config.packageOverrides = super: let
-
-    # This callPackage will try to detect obsolete overrides.
-    callPackage = path: args: let
-      override = super.callPackage path args;
-      upstream = optionalAttrs (override ? "name")
-        (super.${(parseDrvName override.name).name} or {});
-    in if upstream ? "name" &&
-          override ? "name" &&
-          compareVersions upstream.name override.name != -1
-      then trace "Upstream `${upstream.name}' gets overridden by `${override.name}'." override
-      else override;
-
-  in {}
-  // mapAttrs (_: flip callPackage {})
-              (filterAttrs (_: dir: pathExists (dir + "/default.nix"))
-                           (subdirsOf ./.))
-  // {
-    # TODO use XDG_RUNTIME_DIR?
-    cr = pkgs.writeDashBin "cr" ''
-      set -efu
-      export LC_TIME=de_DE.utf8
-      exec ${pkgs.chromium}/bin/chromium \
-          --ssl-version-min=tls1 \
-          --disk-cache-dir=/tmp/chromium-disk-cache_"$LOGNAME" \
-          --disk-cache-size=50000000 \
-          "$@"
-    '';
-    ejabberd = callPackage ./ejabberd {
-      erlang = pkgs.erlangR16;
-    };
-    ff = pkgs.writeDashBin "ff" ''
-      exec ${pkgs.firefoxWrapper}/bin/firefox "$@"
-    '';
-    gnupg = pkgs.gnupg21;
+self: super: let
+
+  # This callPackage will try to detect obsolete overrides.
+  callPackage = path: args: let
+    override = super.callPackage path args;
+    upstream = optionalAttrs (override ? "name")
+      (super.${(parseDrvName override.name).name} or {});
+  in if upstream ? "name" &&
+        override ? "name" &&
+        compareVersions upstream.name override.name != -1
+    then
+      trace
+        "Upstream `${upstream.name}' gets overridden by `${override.name}'."
+        override
+    else override;
+
+in {
+
+  # TODO use XDG_RUNTIME_DIR?
+  cr = self.writeDashBin "cr" ''
+    set -efu
+    export LC_TIME=de_DE.utf8
+    exec ${self.chromium}/bin/chromium \
+        --ssl-version-min=tls1 \
+        --disk-cache-dir=/tmp/chromium-disk-cache_"$LOGNAME" \
+        --disk-cache-size=50000000 \
+        "$@"
+  '';
+
+  ejabberd = callPackage ./ejabberd {
+    erlang = self.erlangR16;
   };
+
+  ff = self.writeDashBin "ff" ''
+    exec ${self.firefoxWrapper}/bin/firefox "$@"
+  '';
+
+  gnupg = self.gnupg21;
+
+  # https://github.com/NixOS/nixpkgs/issues/16113
+  wvdial = let
+    nixpkgs-1509 = import (self.fetchFromGitHub {
+      owner = "NixOS"; repo = "nixpkgs-channels";
+      rev = "91371c2bb6e20fc0df7a812332d99c38b21a2bda";
+      sha256 = "1as1i0j9d2n3iap9b471y4x01561r2s3vmjc5281qinirlr4al73";
+    }) {};
+  in nixpkgs-1509.wvdial;
+
 }
+
+// mapAttrs (_: flip callPackage {})
+            (filterAttrs (_: dir: pathExists (dir + "/default.nix"))
+                         (subdirsOf ./.))
diff --git a/tv/default.nix b/tv/default.nix
index b1c7c1be8..d077cc09f 100644
--- a/tv/default.nix
+++ b/tv/default.nix
@@ -1,9 +1,9 @@
-_:
+{ pkgs, ... }:
 {
   imports = [
     ../krebs
     ./2configs
     ./3modules
-    ./5pkgs
   ];
+  nixpkgs.config.packageOverrides = import ./5pkgs pkgs;
 }