Merge remote-tracking branch 'prism/master'

37 files changed, 405 insertions, 254 deletions

diff --git a/krebs/3modules/repo-sync.nix b/krebs/3modules/repo-sync.nix
index 0317d1eca..bcd9da5ea 100644
--- a/krebs/3modules/repo-sync.nix
+++ b/krebs/3modules/repo-sync.nix
@@ -17,29 +17,57 @@ let
         # see `repo-sync --help`
         #   `ref` provides sane defaults and can be omitted
 
+        # you can have multiple repo-sync groups and therefore multiple @latest
+        # configuration entries.
         # attrset will be converted to json and be used as config
-        { repo = {
+        # each attrset defines a group of repos for syncing
+
+        { nxpkgs = {
             makefu = {
               origin = {
-                url = http://github.com/makefu/repo ;
+                url = http://github.com/makefu/nixpkgs;
                 ref = "heads/dev" ;
               };
               mirror = {
-                url = "git@internal:mirror" ;
+                url = "git@internal:nixpkgs-mirror" ;
                 ref = "heads/github-mirror-dev" ;
               };
             };
             lass = {
               origin = {
-                url = http://github.com/lass/repo ;
+                url = http://github.com/lass/nixpkgs;
+              };
+              mirror = {
+                url = "git@internal:nixpkgs-mirror" ;
+              };
+            };
+            "@latest" = {
+              mirror = {
+                url = "git@internal:nixpkgs-mirror";
+                ref = "heads/master";
+              };
+            };
+          };
+          stockholm = {
+            lass = {
+              origin = {
+                url = http://cgit.prism.r/stockholm;
+              };
+              mirror = {
+                url = "git@internal:stockholm-mirror" ;
+              };
+            };
+            makefu = {
+              origin = {
+                url = http://gum.krebsco.de/stockholm;
               };
               mirror = {
-                url = "git@internal:mirror" ;
+                url = "git@internal:stockholm-mirror" ;
               };
             };
             "@latest" = {
               mirror = {
-                url = "git@internal:mirror";
+                url = "git@internal:stockholm-mirror";
                 ref = "heads/master";
               };
             };
diff --git a/krebs/3modules/rtorrent.nix b/krebs/3modules/rtorrent.nix
index 57a579bc0..d53482339 100644
--- a/krebs/3modules/rtorrent.nix
+++ b/krebs/3modules/rtorrent.nix
@@ -336,7 +336,6 @@ let
           pm.min_spare_servers = 1
           pm.max_spare_servers = 3
           chdir = /
-          # errors to journal
           php_admin_value[error_log] = 'stderr'
           php_admin_flag[log_errors] = on
           catch_workers_output = yes
diff --git a/krebs/5pkgs/passwdqc-utils/default.nix b/krebs/5pkgs/passwdqc-utils/default.nix
index 0299715ba..53e7f5482 100644
--- a/krebs/5pkgs/passwdqc-utils/default.nix
+++ b/krebs/5pkgs/passwdqc-utils/default.nix
@@ -1,13 +1,18 @@
-{stdenv,pam,fetchurl,...}:
+{ stdenv, pam,
+  fetchurl, lib,
+  wordset-file ? null, # set your own wordset-file
+  ... }:
 
 stdenv.mkDerivation rec {
   name = "passwdqc-utils-${version}";
   version = "1.3.0";
   buildInputs = [ pam ];
+
   src = fetchurl {
     url = "http://www.openwall.com/passwdqc/passwdqc-${version}.tar.gz";
     sha256 = "0l3zbrp4pvah0dz33m48aqlz9nx663cc1fqhnlwr0p853b10la93";
   };
+
   buildTargets = "utils";
   installFlags= [ "BINDIR=$(out)/bin"
                   "CONFDIR=$(out)/etc"
@@ -15,7 +20,12 @@ stdenv.mkDerivation rec {
                   "DEVEL_LIBDIR=$(out)/lib"
                   "SECUREDIR=$(out)/lib/security"
                   "INCLUDEDIR=$(out)/include"
-                  "MANDIR=$(out)/man"];
+                  "MANDIR=$(out)/man" ];
+
+  patchPhase = lib.optionalString (wordset-file != null) ''
+    cp -f ${wordset-file} wordset_4k.c
+  '';
+
   installTargets = "install_lib install_utils";
 
   meta = {
diff --git a/lass/1systems/helios.nix b/lass/1systems/helios.nix
index 26ad316ce..8ce1d5748 100644
--- a/lass/1systems/helios.nix
+++ b/lass/1systems/helios.nix
@@ -102,6 +102,11 @@ with config.krebs.lib;
       device = "/dev/pool/bku";
       fsType = "ext4";
     };
+    "/tmp" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = ["nosuid" "nodev" "noatime"];
+    };
   };
 
   #services.udev.extraRules = ''
diff --git a/lass/1systems/mors.nix b/lass/1systems/mors.nix
index 1aa4d9b23..1028ca652 100644
--- a/lass/1systems/mors.nix
+++ b/lass/1systems/mors.nix
@@ -23,7 +23,7 @@ with config.krebs.lib;
     ../2configs/teamviewer.nix
     ../2configs/libvirt.nix
     ../2configs/fetchWallpaper.nix
-    ../2configs/c-base.nix
+    #../2configs/c-base.nix
     ../2configs/mail.nix
     ../2configs/krebs-pass.nix
     ../2configs/repo-sync.nix
@@ -54,8 +54,8 @@ with config.krebs.lib;
         enable = true;
         package = pkgs.postgresql;
       };
-      virtualisation.docker.enable = true;
-      users.users.mainUser.extraGroups = [ "docker" ];
+      #virtualisation.docker.enable = true;
+      #users.users.mainUser.extraGroups = [ "docker" ];
     }
     {
       lass.umts = {
@@ -140,6 +140,11 @@ with config.krebs.lib;
       device = "/dev/big/conf";
       fsType = "ext4";
     };
+    "/tmp" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = ["nosuid" "nodev" "noatime"];
+    };
   };
 
   services.udev.extraRules = ''
@@ -192,8 +197,12 @@ with config.krebs.lib;
     urban
     mk_sql_pair
     remmina
+    thunderbird
 
     logf
+    iodine
+
+    macchanger
   ];
 
   #TODO: fix this shit
diff --git a/lass/1systems/prism.nix b/lass/1systems/prism.nix
index b508103c5..51d106b5e 100644
--- a/lass/1systems/prism.nix
+++ b/lass/1systems/prism.nix
@@ -120,6 +120,12 @@ in {
         device = "/dev/pool/bku";
       };
 
+      fileSystems."/tmp" = {
+        device = "tmpfs";
+        fsType = "tmpfs";
+        options = ["nosuid" "nodev" "noatime"];
+      };
+
     }
     {
       sound.enable = false;
diff --git a/lass/1systems/shodan.nix b/lass/1systems/shodan.nix
index af98c6968..5140591af 100644
--- a/lass/1systems/shodan.nix
+++ b/lass/1systems/shodan.nix
@@ -50,6 +50,11 @@ with builtins;
       device = "/dev/pool/home-lass";
       fsType = "ext4";
     };
+    "/tmp" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = ["nosuid" "nodev" "noatime"];
+    };
   };
 
   services.udev.extraRules = ''
diff --git a/lass/1systems/uriel.nix b/lass/1systems/uriel.nix
index c6d4dbd89..aa5286ae0 100644
--- a/lass/1systems/uriel.nix
+++ b/lass/1systems/uriel.nix
@@ -23,7 +23,6 @@ with config.krebs.lib;
         useDefaultShell = true;
       };
       networking.networkmanager.enable = true;
-      networking.wireless.enable = mkForce false;
       hardware.pulseaudio = {
         enable = true;
         systemWide = true;
@@ -41,8 +40,6 @@ with config.krebs.lib;
 
   krebs.build.host = config.krebs.hosts.uriel;
 
-  networking.wireless.enable = true;
-
   hardware.enableAllFirmware = true;
   nixpkgs.config.allowUnfree = true;
 
@@ -77,6 +74,11 @@ with config.krebs.lib;
     "/boot" = {
       device = "/dev/sda1";
     };
+    "/tmp" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = ["nosuid" "nodev" "noatime"];
+    };
   };
 
   services.udev.extraRules = ''
diff --git a/lass/2configs/browsers.nix b/lass/2configs/browsers.nix
index ea79053ce..90f420674 100644
--- a/lass/2configs/browsers.nix
+++ b/lass/2configs/browsers.nix
@@ -1,11 +1,28 @@
 { config, lib, pkgs, ... }:
 
+with config.krebs.lib;
 let
-  inherit (config.krebs.lib) genid;
 
   mainUser = config.users.extraUsers.mainUser;
-  createChromiumUser = name: extraGroups: packages:
-    {
+
+  browser-select = pkgs.writeScriptBin "browser-select" ''
+    BROWSER=$(echo -e "${concatStringsSep "\\n" (attrNames config.lass.browser.paths)}" | ${pkgs.dmenu}/bin/dmenu)
+    case $BROWSER in
+    ${concatMapStringsSep "\n" (n: ''
+      ${n})
+        export BIN=${config.lass.browser.paths.${n}}/bin/${n}
+        ;;
+    '') (attrNames config.lass.browser.paths)}
+    esac
+    $BIN "$@"
+  '';
+
+  createChromiumUser = name: extraGroups:
+    let
+      bin = pkgs.writeScriptBin name ''
+        /var/setuid-wrappers/sudo -u ${name} -i ${pkgs.chromium}/bin/chromium $@
+      '';
+    in {
       users.extraUsers.${name} = {
         inherit name;
         inherit extraGroups;
@@ -14,19 +31,21 @@ let
         useDefaultShell = true;
         createHome = true;
       };
-      krebs.per-user.${name}.packages = packages;
+      lass.browser.paths.${name} = bin;
       security.sudo.extraConfig = ''
         ${mainUser.name} ALL=(${name}) NOPASSWD: ALL
       '';
       environment.systemPackages = [
-        (pkgs.writeScriptBin name ''
-          /var/setuid-wrappers/sudo -u ${name} -i chromium $@
-        '')
+        bin
       ];
     };
 
-  createFirefoxUser = name: extraGroups: packages:
-    {
+  createFirefoxUser = name: extraGroups:
+    let
+      bin = pkgs.writeScriptBin name ''
+        /var/setuid-wrappers/sudo -u ${name} -i ${pkgs.firefox}/bin/firefox $@
+      '';
+    in {
       users.extraUsers.${name} = {
         inherit name;
         inherit extraGroups;
@@ -35,14 +54,12 @@ let
         useDefaultShell = true;
         createHome = true;
       };
-      krebs.per-user.${name}.packages = packages;
+      lass.browser.paths.${name} = bin;
       security.sudo.extraConfig = ''
         ${mainUser.name} ALL=(${name}) NOPASSWD: ALL
       '';
       environment.systemPackages = [
-        (pkgs.writeScriptBin name ''
-          /var/setuid-wrappers/sudo -u ${name} -i firefox $@
-        '')
+        bin
       ];
     };
 
@@ -50,19 +67,26 @@ let
 
 in {
 
+  lass.browser.select = browser-select;
+
   environment.systemPackages = [
-    (pkgs.writeScriptBin "browser-select" ''
-      BROWSER=$(echo -e "ff\ncr\nwk\nfb\ngm\nflash" | dmenu)
-      $BROWSER $@
-    '')
+    browser-select
   ];
 
   imports = [
-    ( createFirefoxUser "ff" [ "audio" ] [ pkgs.firefox ] )
-    ( createChromiumUser "cr" [ "video" "audio" ] [ pkgs.chromium ] )
-    ( createChromiumUser "wk" [ "video" "audio" ] [ pkgs.chromium ] )
-    ( createChromiumUser "fb" [ "video" "audio" ] [ pkgs.chromium ] )
-    ( createChromiumUser "gm" [ "video" "audio" ] [ pkgs.chromium ] )
-    ( createChromiumUser "com" [ "video" "audio" ] [ pkgs.chromium ] )
+    {
+      options.lass.browser.select = mkOption {
+        type = types.path;
+      };
+      options.lass.browser.paths = mkOption {
+        type = with types; attrsOf path;
+      };
+    }
+    ( createFirefoxUser "ff" [ "audio" ] )
+    ( createChromiumUser "cr" [ "video" "audio" ] )
+    ( createChromiumUser "wk" [ "video" "audio" ] )
+    ( createChromiumUser "fb" [ "video" "audio" ] )
+    ( createChromiumUser "gm" [ "video" "audio" ] )
+    ( createChromiumUser "com" [ "video" "audio" ] )
   ];
 }
diff --git a/lass/2configs/default.nix b/lass/2configs/default.nix
index af3ed1d36..0b7ca8eaa 100644
--- a/lass/2configs/default.nix
+++ b/lass/2configs/default.nix
@@ -67,7 +67,7 @@ with config.krebs.lib;
     };
   };
 
-  nix.useChroot = true;
+  nix.useSandbox = true;
 
   users.mutableUsers = false;
 
@@ -97,6 +97,7 @@ with config.krebs.lib;
     jq
     parallel
     proot
+    populate
 
   #style
     most
@@ -141,15 +142,6 @@ with config.krebs.lib;
       shopt -s histappend histreedit histverify
       shopt -s no_empty_cmd_completion
       complete -d cd
-
-      #fancy colors
-      if [ -e ~/LS_COLORS ]; then
-        eval $(dircolors ~/LS_COLORS)
-      fi
-
-      if [ -e /etc/nixos/dotfiles/link ]; then
-        /etc/nixos/dotfiles/link
-      fi
     '';
     promptInit = ''
       if test $UID = 0; then
diff --git a/lass/2configs/iodined.nix b/lass/2configs/iodined.nix
index 3108a6b23..f67e2ae86 100644
--- a/lass/2configs/iodined.nix
+++ b/lass/2configs/iodined.nix
@@ -6,15 +6,15 @@ let
   pw = import <secrets/iodinepw.nix>;
 in {
 
-  services.iodined = {
+  services.iodine.server = {
     enable = true;
     domain = domain;
     ip = "172.16.10.1/24";
-    extraConfig = "-P ${pw} -l ${config.krebs.build.host.nets.internet.ip4.addr}";
+    extraConfig = "-c -P ${pw} -l ${config.krebs.build.host.nets.internet.ip4.addr}";
   };
 
   krebs.iptables.tables.filter.INPUT.rules = [
-    { predicate = "-p udp --dport 54"; target = "ACCEPT";}
+    { predicate = "-p udp --dport 53"; target = "ACCEPT";}
   ];
 
 }
diff --git a/lass/2configs/nixpkgs.nix b/lass/2configs/nixpkgs.nix
index 9e3fe888c..6e9138b61 100644
--- a/lass/2configs/nixpkgs.nix
+++ b/lass/2configs/nixpkgs.nix
@@ -2,7 +2,7 @@
 
 {
   krebs.build.source.nixpkgs.git = {
-    url = https://github.com/lassulus/nixpkgs;
-    ref = "3fb009d94e70f5d1151f4ec239a90d2de1979a74";
+    url = https://github.com/nixos/nixpkgs;
+    ref = "354fd3728952c229fee4f2924737c601d7ab4725";
   };
 }
diff --git a/lass/2configs/websites/domsen.nix b/lass/2configs/websites/domsen.nix
index 2f93c1f9c..e05f40d97 100644
--- a/lass/2configs/websites/domsen.nix
+++ b/lass/2configs/websites/domsen.nix
@@ -143,23 +143,11 @@ in {
     };
   };
 
-
-  #services.phpfpm.phpOptions = ''
-  #  extension=${pkgs.phpPackages.apcu}/lib/php/extensions/apcu.so
-  #  sendmail_path = ${sendmail} -t
-  #'';
-  services.phpfpm.phpIni = pkgs.runCommand "php.ini" {
-     options = ''
-      extension=${pkgs.phpPackages.apcu}/lib/php/extensions/apcu.so
-      sendmail_path = "${sendmail} -t -i"
-      always_populate_raw_post_data = -1
-      upload_max_filesize = 100M
-      post_max_size = 100M
-      file_uploads = on
-    '';
-  } ''
-    cat ${pkgs.php}/etc/php-recommended.ini > $out
-    echo "$options" >> $out
+  services.phpfpm.phpOptions = ''
+    sendmail_path = ${sendmail} -t
+    upload_max_filesize = 100M
+    post_max_size = 100M
+    file_uploads = on
   '';
 
   # MAIL STUFF
diff --git a/lass/2configs/websites/util.nix b/lass/2configs/websites/util.nix
index 467229c0c..23f417195 100644
--- a/lass/2configs/websites/util.nix
+++ b/lass/2configs/websites/util.nix
@@ -167,7 +167,6 @@ rec {
         pm.max_spare_servers = 3
         listen.owner = nginx
         listen.group = nginx
-        # errors to journal
         php_admin_value[error_log] = 'stderr'
         php_admin_flag[log_errors] = on
         catch_workers_output = yes
@@ -220,7 +219,6 @@ rec {
         pm.max_spare_servers = 3
         listen.owner = nginx
         listen.group = nginx
-        # errors to journal
         php_admin_value[error_log] = 'stderr'
         php_admin_flag[log_errors] = on
         catch_workers_output = yes
diff --git a/lass/2configs/xserver/Xresources.nix b/lass/2configs/xserver/Xresources.nix
index 5d3661706..0f04540c3 100644
--- a/lass/2configs/xserver/Xresources.nix
+++ b/lass/2configs/xserver/Xresources.nix
@@ -11,7 +11,7 @@ pkgs.writeText "Xresources" ''
   ! ref https://github.com/muennich/urxvt-perls
   URxvt.perl-lib: ${pkgs.urxvt_perls}/lib/urxvt/perl
   URxvt.perl-ext-common:      default,clipboard,url-select,keyboard-select
-  URxvt.url-select.launcher:  browser-select
+  URxvt.url-select.launcher:  ${config.lass.browser.select}/bin/browser-select
   URxvt.url-select.underline: true
   URxvt.keysym.M-u:           perl:url-select:select_next
   URxvt.keysym.M-Escape:      perl:keyboard-select:activate
diff --git a/lass/2configs/xserver/default.nix b/lass/2configs/xserver/default.nix
index 73b148bf7..0f9b1f84a 100644
--- a/lass/2configs/xserver/default.nix
+++ b/lass/2configs/xserver/default.nix
@@ -1,143 +1,112 @@
-{ config, lib, pkgs, ... }@args:
-
+{ config, pkgs, ... }@args:
 with config.krebs.lib;
-
 let
-  # TODO krebs.build.user
-  user = config.users.users.mainUser;
-
-  out = {
-    services.xserver = {
-      display = 11;
-      tty = 11;
-
-      synaptics = {
-        enable = true;
-        twoFingerScroll = true;
-        accelFactor = "0.035";
-      };
-
-      #keyboard stuff
-      layout = "us";
-      xkbVariant = "altgr-intl";
-      xkbOptions = "caps:backspace";
+  user = config.krebs.build.user;
+in {
+
+  environment.systemPackages = [
+    pkgs.gitAndTools.qgit
+    pkgs.mpv
+    pkgs.sxiv
+    pkgs.xsel
+    pkgs.zathura
+  ];
+
+  fonts.fonts = [
+    pkgs.xlibs.fontschumachermisc
+  ];
+
+  services.xserver = {
+    enable = true;
+    display = 11;
+    tty = 11;
+
+    synaptics = {
+      enable = true;
+      twoFingerScroll = true;
+      accelFactor = "0.035";
     };
 
-    fonts.fonts = [
-      pkgs.xlibs.fontschumachermisc
-    ];
+    layout = "us";
+    xkbVariant = "altgr-intl";
+    xkbOptions = "caps:backspace";
+  };
 
-    systemd.services.urxvtd = {
-      wantedBy = [ "multi-user.target" ];
-      reloadIfChanged = true;
-      serviceConfig = {
-        ExecReload = need-reload "urxvtd.service";
-        ExecStart = "${pkgs.rxvt_unicode}/bin/urxvtd";
-        Restart = "always";
-        RestartSec = "2s";
-        StartLimitBurst = 0;
-        User = user.name;
-      };
-    };
+  systemd.services.display-manager.enable = false;
 
-    krebs.per-user.lass.packages = [
-      pkgs.rxvt_unicode_with-plugins
-    ];
+  systemd.services.xmonad = {
+    wantedBy = [ "multi-user.target" ];
+    requires = [ "xserver.service" ];
+    environment = {
+      DISPLAY = ":${toString config.services.xserver.display}";
 
-    systemd.services.display-manager.enable = false;
+      XMONAD_STARTUP_HOOK = pkgs.writeDash "xmonad-startup-hook" ''
+        ${pkgs.xorg.xhost}/bin/xhost +LOCAL: &
+        ${pkgs.xorg.xrdb}/bin/xrdb -merge ${import ./Xresources.nix args} &
+        ${pkgs.xorg.xsetroot}/bin/xsetroot -solid '#1c1c1c' &
+        wait
+      '';
 
-    services.xserver.enable = true;
+      XMONAD_STATE = "/tmp/xmonad.state";
 
-    systemd.services.xmonad = {
-      wantedBy = [ "multi-user.target" ];
-      requires = [ "xserver.service" ];
-      environment = xmonad-environment;
-      restartIfChanged = true;
-      serviceConfig = {
-        ExecStart = "${xmonad-start}/bin/xmonad";
-        ExecStop = "${xmonad-stop}/bin/xmonad-stop";
-        User = user.name;
-        WorkingDirectory = user.home;
-      };
+      # XXX JSON is close enough :)
+      XMONAD_WORKSPACES0_FILE = pkgs.writeText "xmonad.workspaces0" (toJSON [
+        "dashboard" # we start here
+      ]);
     };
-
-    systemd.services.xserver = {
-      after = [
-        "systemd-udev-settle.service"
-        "local-fs.target"
-        "acpid.service"
-      ];
-      reloadIfChanged = true;
-      environment = xserver-environment;
-      serviceConfig = {
-        ExecReload = need-reload "xserver.service";
-        ExecStart = "${xserver}/bin/xserver";
-      };
+    serviceConfig = {
+      SyslogIdentifier = "xmonad";
+      ExecStart = "${pkgs.xmonad-lass}/bin/xmonad";
+      ExecStop = pkgs.writeScript "xmonad-stop" ''
+        #! /bin/sh
+        ${pkgs.xmonad-lass}/bin/xmonad --shutdown
+        ${pkgs.coreutils}/bin/sleep 2s
+      '';
+      User = user.name;
+      WorkingDirectory = user.home;
     };
   };
 
-  xmonad-environment = {
-    DISPLAY = ":${toString config.services.xserver.display}";
-    XMONAD_STATE = "/tmp/xmonad.state";
-
-    # XXX JSON is close enough :)
-    XMONAD_WORKSPACES0_FILE = pkgs.writeText "xmonad.workspaces0" (toJSON [
-      "dashboard"
-    ]);
+  systemd.services.xserver = {
+    after = [
+      "systemd-udev-settle.service"
+      "local-fs.target"
+      "acpid.service"
+    ];
+    reloadIfChanged = true;
+    environment = {
+      XKB_BINDIR = "${pkgs.xorg.xkbcomp}/bin"; # Needed for the Xkb extension.
+      XORG_DRI_DRIVER_PATH = "/run/opengl-driver/lib/dri"; # !!! Depends on the driver selected at runtime.
+      LD_LIBRARY_PATH = concatStringsSep ":" (
+        [ "${pkgs.xorg.libX11}/lib" "${pkgs.xorg.libXext}/lib" ]
+        ++ concatLists (catAttrs "libPath" config.services.xserver.drivers));
+    };
+    serviceConfig = {
+      SyslogIdentifier = "xserver";
+      ExecReload = "${pkgs.coreutils}/bin/echo NOP";
+      ExecStart = toString [
+        "${pkgs.xorg.xorgserver}/bin/X"
+        ":${toString config.services.xserver.display}"
+        "vt${toString config.services.xserver.tty}"
+        "-config ${import ./xserver.conf.nix args}"
+        "-logfile /dev/null -logverbose 0 -verbose 3"
+        "-nolisten tcp"
+        "-xkbdir ${pkgs.xkeyboard_config}/etc/X11/xkb"
+      ];
+    };
   };
 
-  xmonad-start = pkgs.writeScriptBin "xmonad" ''
-    #! ${pkgs.bash}/bin/bash
-    set -efu
-    export PATH; PATH=${makeSearchPath "bin" ([
-      pkgs.rxvt_unicode
-    ] ++ config.environment.systemPackages)}:/var/setuid-wrappers
-    settle() {(
-      # Use PATH for a clean journal
-      command=''${1##*/}
-      PATH=''${1%/*}; export PATH
-      shift
-      until "$command" "$@"; do
-        ${pkgs.coreutils}/bin/sleep 1
-      done
-    )&}
-    settle ${pkgs.xorg.xhost}/bin/xhost +LOCAL:
-    settle ${pkgs.xorg.xrdb}/bin/xrdb -merge ${import ./Xresources.nix args}
-    settle ${pkgs.xorg.xsetroot}/bin/xsetroot -solid '#1c1c1c'
-    exec ${pkgs.xmonad-lass}/bin/xmonad
-  '';
-
-  xmonad-stop = pkgs.writeScriptBin "xmonad-stop" ''
-    #! /bin/sh
-    ${pkgs.xmonad-lass}/bin/xmonad --shutdown
-    ${pkgs.coreutils}/bin/sleep 2s
-  '';
-
-  xserver-environment = {
-    XKB_BINDIR = "${pkgs.xorg.xkbcomp}/bin"; # Needed for the Xkb extension.
-    XORG_DRI_DRIVER_PATH = "/run/opengl-driver/lib/dri"; # !!! Depends on the driver selected at runtime.
-    LD_LIBRARY_PATH = concatStringsSep ":" (
-      [ "${pkgs.xorg.libX11}/lib" "${pkgs.xorg.libXext}/lib" ]
-      ++ concatLists (catAttrs "libPath" config.services.xserver.drivers));
+  systemd.services.urxvtd = {
+    wantedBy = [ "multi-user.target" ];
+    reloadIfChanged = true;
+    serviceConfig = {
+      SyslogIdentifier = "urxvtd";
+      ExecReload = "${pkgs.coreutils}/bin/echo NOP";
+      ExecStart = "${pkgs.rxvt_unicode}/bin/urxvtd";
+      Restart = "always";
+      RestartSec = "2s";
+      StartLimitBurst = 0;
+      User = user.name;
+    };
   };
-
-  xserver = pkgs.writeScriptBin "xserver" ''
-    #! /bin/sh
-    set -efu
-    exec ${pkgs.xorg.xorgserver.out}/bin/X \
-        :${toString config.services.xserver.display} \
-        vt${toString config.services.xserver.tty} \
-        -config ${import ./xserver.conf.nix args} \
-        -logfile /var/log/X.${toString config.services.xserver.display}.log \
-        -nolisten tcp \
-        -xkbdir ${pkgs.xkeyboard_config}/etc/X11/xkb \
-  '';
-
-  need-reload = s: let
-    pkg = pkgs.writeScriptBin "need-reload" ''
-      #! /bin/sh
-      echo "$*"
-    '';
-  in "${pkg}/bin/need-reload ${s}";
-
-in out
+}
diff --git a/lass/2configs/zsh.nix b/lass/2configs/zsh.nix
index b221d7677..aa159be07 100644
--- a/lass/2configs/zsh.nix
+++ b/lass/2configs/zsh.nix
@@ -118,5 +118,4 @@
       fi
     '';
   };
-  users.defaultUserShell = "/run/current-system/sw/bin/zsh";
 }
diff --git a/lass/3modules/default.nix b/lass/3modules/default.nix
index 6e1e20dd3..6588ca0d3 100644
--- a/