Merge remote-tracking branch 'prism/master'

27 files changed, 461 insertions, 53 deletions

diff --git a/krebs/2configs/cache.nsupdate.info.nix b/krebs/2configs/cache.nsupdate.info.nix
new file mode 100644
index 00000000..056667d8
--- /dev/null
+++ b/krebs/2configs/cache.nsupdate.info.nix
@@ -0,0 +1,33 @@
+{lib, ... }:
+with lib;
+let
+  domain = "cache.nsupdate.info";
+in {
+  # This only works for a single domain for nsupdate.info as multiple usernames
+  # and passwords are required for multiple domains
+  services.ddclient = {
+    enable = true;
+    server = "ipv4.nsupdate.info";
+    username = domain;
+    password = import ((toString <secrets>) + "/nsupdate-cache.nix");
+    domains = [ domain ];
+    use= "if, if=et0";
+    # use = "web, web=http://ipv4.nsupdate.info/myip";
+
+  };
+  krebs.cachecache = {
+    enable = true;
+    enableSSL = false; # disable letsencrypt for testing
+    cacheDir = "/var/cache/nix-cache-cache";
+    maxSize = "10g";
+
+    # assumes that the domain is reachable from the internet
+    virtualHost = domain;
+  };
+
+  boot.kernelModules = [ "tcp_bbr" ];
+
+  boot.kernel.sysctl."net.ipv4.tcp_congestion_control" = "bbr";
+  boot.kernel.sysctl."net.core.default_qdisc" = "fq";
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+}
diff --git a/krebs/3modules/buildbot/master.nix b/krebs/3modules/buildbot/master.nix
index 209dbe98..8995753a 100644
--- a/krebs/3modules/buildbot/master.nix
+++ b/krebs/3modules/buildbot/master.nix
@@ -362,7 +362,7 @@ let
           #       normally we should write buildbot.tac by our own
           # ${pkgs.buildbot-classic}/bin/buildbot upgrade-master ${workdir}
 
-          chmod 700 -R ${workdir}
+          chmod 700 ${workdir}
           chown buildbotMaster:buildbotMaster -R ${workdir}
         '';
         ExecStart = "${pkgs.buildbot-classic}/bin/buildbot start --nodaemon ${workdir}";
diff --git a/krebs/3modules/buildbot/slave.nix b/krebs/3modules/buildbot/slave.nix
index 544f9c4e..c15169fb 100644
--- a/krebs/3modules/buildbot/slave.nix
+++ b/krebs/3modules/buildbot/slave.nix
@@ -166,7 +166,7 @@ let
           echo ${description} > ${workdir}/info/host
 
           chown buildbotSlave:buildbotSlave -R ${workdir}
-          chmod 700 -R ${workdir}
+          chmod 700 ${workdir}
         '';
         ExecStart = "${pkgs.buildbot-classic-slave}/bin/buildslave start ${workdir}";
         ExecStop = "${pkgs.buildbot-classic-slave}/bin/buildslave stop ${workdir}";
diff --git a/krebs/3modules/cachecache.nix b/krebs/3modules/cachecache.nix
new file mode 100644
index 00000000..98932048
--- /dev/null
+++ b/krebs/3modules/cachecache.nix
@@ -0,0 +1,171 @@
+{ config, lib, ... }:
+
+
+# fork of https://gist.github.com/rycee/f495fc6cc4130f155e8b670609a1e57b
+# related: https://github.com/nh2/nix-binary-cache-proxy
+
+with lib;
+
+let
+
+  cfg = config.krebs.cachecache;
+
+  nginxCfg = config.services.nginx;
+
+  cacheFallbackConfig = {
+    proxyPass = "$upstream_endpoint";
+    extraConfig = ''
+      # Default is HTTP/1, keepalive is only enabled in HTTP/1.1.
+      proxy_http_version 1.1;
+
+      # Remove the Connection header if the client sends it, it could
+      # be "close" to close a keepalive connection
+      proxy_set_header Connection "";
+
+      # Needed for CloudFront.
+      proxy_ssl_server_name on;
+
+      proxy_set_header Host $proxy_host;
+      proxy_cache nix_cache_cache;
+      proxy_cache_valid 200 302 60m;
+      proxy_cache_valid 404 1m;
+
+      expires max;
+      add_header Cache-Control $nix_cache_cache_header always;
+    '';
+  };
+
+in
+
+{
+  options = {
+    krebs.cachecache = {
+      enable = mkEnableOption "Nix binary cache cache";
+
+      virtualHost = mkOption {
+        type = types.str;
+        default = "nix-cache";
+        description = ''
+          Name of the nginx virtualhost to use and setup. If null, do
+          not setup any virtualhost.
+        '';
+      };
+      enableSSL = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          enable SSL via letsencrypt. Requires working dns resolution and open
+          internet tls port.
+        '';
+      };
+
+      # webRoot = mkOption {
+      #   type = types.str;
+      #   default = "/";
+      #   description = ''
+      #     Directory on virtual host that serves the cache. Must end in
+      #     <literal>/</literal>.
+      #   '';
+      # };
+
+      resolver = mkOption {
+        type = types.str;
+        description = "Address of DNS resolver.";
+        default = "8.8.8.8 ipv6=off";
+        example = "127.0.0.1 ipv6=off";
+      };
+
+      cacheDir = mkOption {
+        type = types.str;
+        default = "/var/cache/nix-cache-cache";
+        description = ''
+          Where nginx should store cached data.
+        '';
+      };
+
+      maxSize = mkOption {
+        type = types.str;
+        default = "50g";
+        description = "Maximum cache size.";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+
+    systemd.services.nginx.preStart = ''
+      mkdir -p ${cfg.cacheDir} /srv/www/nix-cache-cache
+      chmod 700 ${cfg.cacheDir} /srv/www/nix-cache-cache
+      chown ${nginxCfg.user}:${nginxCfg.group} \
+        ${cfg.cacheDir} /srv/www/nix-cache-cache
+    '';
+
+    services.nginx = {
+      enable = true;
+
+      appendHttpConfig = ''
+        proxy_cache_path ${cfg.cacheDir}
+          levels=1:2
+          keys_zone=nix_cache_cache:100m
+          max_size=${cfg.maxSize}
+          inactive=365d
+          use_temp_path=off;
+
+        # Cache only success status codes; in particular we don't want
+        # to cache 404s. See https://serverfault.com/a/690258/128321.
+        map $status $nix_cache_cache_header {
+          200     "public";
+          302     "public";
+          default "no-cache";
+        }
+      '';
+
+      virtualHosts.${cfg.virtualHost} = {
+        addSSL = cfg.enableSSL;
+        enableACME = cfg.enableSSL;
+        extraConfig = ''
+          # Using a variable for the upstream endpoint to ensure that it is
+          # resolved at runtime as opposed to once when the config file is loaded
+          # and then cached forever (we don't want that):
+          # see https://tenzer.dk/nginx-with-dynamic-upstreams/
+          # This fixes errors like
+          #
+          #   nginx: [emerg] host not found in upstream "upstream.example.com"
+          #
+          # when the upstream host is not reachable for a short time when
+          # nginx is started.
+          resolver ${cfg.resolver} valid=10s;
+          set $upstream_endpoint https://cache.nixos.org;
+        '';
+
+        locations."/" =
+        {
+          root = "/srv/www/nix-cache-cache";
+          extraConfig = ''
+            expires max;
+            add_header Cache-Control $nix_cache_cache_header always;
+
+            # Ask the upstream server if a file isn't available
+            # locally.
+            error_page 404 = @fallback;
+
+            # Don't bother logging the above 404.
+            log_not_found off;
+          '';
+        };
+
+        locations."@fallback" = cacheFallbackConfig;
+
+        # We always want to copy cache.nixos.org's nix-cache-info
+        # file, and ignore our own, because `nix-push` by default
+        # generates one without `Priority` field, and thus that file
+        # by default has priority 50 (compared to cache.nixos.org's
+        # `Priority: 40`), which will make download clients prefer
+        # `cache.nixos.org` over our binary cache.
+        locations."= /nix-cache-info" = cacheFallbackConfig;
+      };
+    };
+  };
+}
diff --git a/krebs/3modules/ci.nix b/krebs/3modules/ci.nix
index 4cfe598d..d8d0e7f3 100644
--- a/krebs/3modules/ci.nix
+++ b/krebs/3modules/ci.nix
@@ -26,8 +26,15 @@ let
 
   hostname = config.networking.hostName;
   getJobs = pkgs.writeDash "get_jobs" ''
+    set -efu
     nix-build --no-out-link --quiet -Q ./ci.nix > /dev/null
-    nix-instantiate --quiet -Q --eval --strict --json ./ci.nix
+    js="$(nix-instantiate --quiet -Q --eval --strict --json ./ci.nix)"
+    echo "$js" | jq -r 'to_entries[] | [.key, .value] | @tsv' \
+      | while read -r host builder; do
+        gcroot=${shell.escape profileRoot}/$host-builder
+        ${pkgs.nix}/bin/nix-env -p "$gcroot" --set "$builder"
+      done
+    echo "$js"
   '';
 
   profileRoot = "/nix/var/nix/profiles/ci";
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index ca67ce65..24cbd9cc 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -14,6 +14,7 @@ let
       ./buildbot/master.nix
       ./buildbot/slave.nix
       ./build.nix
+      ./cachecache.nix
       ./charybdis.nix
       ./ci.nix
       ./current.nix
diff --git a/krebs/3modules/fetchWallpaper.nix b/krebs/3modules/fetchWallpaper.nix
index f6718812..5a506556 100644
--- a/krebs/3modules/fetchWallpaper.nix
+++ b/krebs/3modules/fetchWallpaper.nix
@@ -38,11 +38,6 @@ let
       '';
       default = {};
     };
-    maxTime = mkOption {
-      type = types.int;
-      default = 0;
-      description = "Time to wait before download is aborted";
-    };
   };
 
   fetchWallpaperScript = pkgs.writeDash "fetchWallpaper" ''
@@ -51,8 +46,8 @@ let
     mkdir -p ${cfg.stateDir}
     chmod o+rx ${cfg.stateDir}
     cd ${cfg.stateDir}
-    (curl --max-time ${toString cfg.maxTime} -s -o wallpaper.tmp -z wallpaper.tmp ${shell.escape cfg.url} && cp wallpaper.tmp wallpaper) || :
-    feh --no-fehbg --bg-scale ${shell.escape cfg.stateDir}/wallpaper
+    (curl -s -o wallpaper.tmp -z wallpaper.tmp ${shell.escape cfg.url} && cp wallpaper.tmp wallpaper) || :
+    feh --no-fehbg --bg-scale wallpaper
   '';
 
   imp = {
diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index bea0f1c0..188fbc46 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -624,15 +624,16 @@ in {
             "blog.makefu.r"
             "blog.gum.r"
             "dcpp.gum.r"
+            "torrent.gum.r"
           ];
           tinc.pubkey = ''
             -----BEGIN RSA PUBLIC KEY-----
-            MIIBCgKCAQEAucCebFmS96WorD+Br4UQudmAhMlLpacErjwA/u2argBTT2nGHTR8
-            aN4e0xf3IYLA+iogLIW/JuQfKLe8evEK21iZ3jleW8N7mbCulhasi/0lqWlirrpO
-            npJAiSNF1m7ijoylkEKxtmehze+8ojprUT2hx1ImMlHMWGxvs+TmBbZBMgxAGMJh
-            6cMMDJQi+4d9XrJQ3+XUVK3MkviLA91oIAXsLdFptL6b12siUaz4StQXDJUHemBF
-            3ZwlO+W2Es69ifEhmV6NaDDRcSRdChGbHTz1OU8wYaFNaxWla/iprQQ+jEUldpcN
-            VC18QGYRUAgZ0PCIpKurjWNehJFB3zXt+wIDAQAB
+            MIIBCgKCAQEAvgvzx3rT/3zLuCkzXk1ZkYBkG4lltxrLOLNivohw2XAzrYDIw/ZY
+            BTDDcD424EkNOF6g/3tIRWqvVGZ1u12WQ9A/R+2F7i1SsaE4nTxdNlQ5rjy80gO3
+            i1ZubMkTGwd1OYjJytYdcMTwM9V9/8QYFiiWqh77Xxu/FhY6PcQqwHxM7SMyZCJ7
+            09gtZuR16ngKnKfo2tw6C3hHQtWCfORVbWQq5cmGzCb4sdIKow5BxUC855MulNsS
+            u5l+G8wX+UbDI85VSDAtOP4QaSFzLL+U0aaDAmq0NO1QiODJoCo0iPhULZQTFZUa
+            OMDYHHfqzluEI7n8ENI4WwchDXH+MstsgwIDAQAB
             -----END RSA PUBLIC KEY-----
           '';
         };
diff --git a/krebs/nixpkgs.json b/krebs/nixpkgs.json
index e013645e..61fd085b 100644
--- a/krebs/nixpkgs.json
+++ b/krebs/nixpkgs.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/NixOS/nixpkgs-channels",
-  "rev": "bf7930d582bcf7953c3b87e649858f3f1873eb9c",
-  "date": "2018-11-04T19:36:25+01:00",
-  "sha256": "0nvn6g0pxp0glqjg985qxs7ash0cmcdc80h8jxxk6z4pnr3f2n1m",
+  "rev": "5d4a1a3897e2d674522bcb3aa0026c9e32d8fd7c",
+  "date": "2018-11-24T00:40:22-05:00",
+  "sha256": "19kryzx9a6x68mpyxks3dajraf92hkbnw1zf952k73s2k4qw9jlq",
   "fetchSubmodules": false
 }
diff --git a/lass/1systems/archprism/config.nix b/lass/1systems/archprism/config.nix
index 6706914b..bed8961b 100644
--- a/lass/1systems/archprism/config.nix
+++ b/lass/1systems/archprism/config.nix
@@ -110,7 +110,6 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/iodined.nix>
     <stockholm/lass/2configs/paste.nix>
     <stockholm/lass/2configs/syncthing.nix>
-    <stockholm/lass/2configs/reaktor-coders.nix>
     <stockholm/lass/2configs/ciko.nix>
     <stockholm/lass/2configs/container-networking.nix>
     <stockholm/lass/2configs/monitoring/prometheus-server.nix>
diff --git a/lass/1systems/blue/source.nix b/lass/1systems/blue/source.nix
new file mode 100644
index 00000000..8f748ab8
--- /dev/null
+++ b/lass/1systems/blue/source.nix
@@ -0,0 +1,11 @@
+{ lib, pkgs, ... }:
+{
+  nixpkgs = lib.mkForce {
+    file = toString (pkgs.fetchFromGitHub {
+      owner = "nixos";
+      repo = "nixpkgs";
+      rev = (lib.importJSON ../../../krebs/nixpkgs.json).rev;
+      sha256 = (lib.importJSON ../../../krebs/nixpkgs.json).sha256;
+    });
+  };
+}
diff --git a/lass/1systems/mors/config.nix b/lass/1systems/mors/config.nix
index 6d65b58c..cac13be2 100644
--- a/lass/1systems/mors/config.nix
+++ b/lass/1systems/mors/config.nix
@@ -33,6 +33,7 @@ with import <stockholm/lib>;
     <stockholm/lass/2configs/rtl-sdr.nix>
     <stockholm/lass/2configs/backup.nix>
     <stockholm/lass/2configs/print.nix>
+    <stockholm/lass/2configs/blue-host.nix>
     {
       krebs.iptables.tables.filter.INPUT.rules = [
         #risk of rain
diff --git a/lass/1systems/skynet/config.nix b/lass/1systems/skynet/config.nix
index b6c08f79..14aca598 100644
--- a/lass/1systems/skynet/config.nix
+++ b/lass/1systems/skynet/config.nix
@@ -5,42 +5,35 @@ with import <stockholm/lib>;
     <stockholm/lass>
 
     <stockholm/lass/2configs/retiolum.nix>
-    #<stockholm/lass/2configs/exim-retiolum.nix>
     <stockholm/lass/2configs/fetchWallpaper.nix>
+    <stockholm/lass/2configs/blue-host.nix>
     {
-      # discordius config
       services.xserver.enable = true;
+      services.xserver.desktopManager.xfce.enable = true;
+
       users.users.discordius = {
-        uid = genid "discordius";
-        home = "/home/discordius";
-        group = "users";
-        createHome = true;
+        uid = genid "diskordius";
+        isNormalUser = true;
         extraGroups = [
           "audio"
           "networkmanager"
         ];
-        useDefaultShell = true;
-      };
-      networking.networkmanager.enable = true;
-      networking.wireless.enable = mkForce false;
-      hardware.pulseaudio = {
-        enable = true;
-        systemWide = true;
       };
       environment.systemPackages = with pkgs; [
-        pavucontrol
-        firefox
-        hexchat
-        networkmanagerapplet
+        google-chrome
       ];
-      services.xserver.desktopManager.gnome3 = {
+      hardware.pulseaudio = {
         enable = true;
+        systemWide = true;
       };
     }
   ];
 
   krebs.build.host = config.krebs.hosts.skynet;
 
+  networking.wireless.enable = false;
+  networking.networkmanager.enable = true;
+
   services.logind.extraConfig = ''
     HandleLidSwitch=ignore
   '';
diff --git a/lass/1systems/skynet/physical.nix b/lass/1systems/skynet/physical.nix
index 358e1f51..e3451293 100644
--- a/lass/1systems/skynet/physical.nix
+++ b/lass/1systems/skynet/physical.nix
@@ -1,10 +1,27 @@
 {
   imports = [
     ./config.nix
-    <stockholm/lass/2configs/hw/x220.nix>
-    <stockholm/lass/2configs/boot/stock-x220.nix>
+    <stockholm/krebs/2configs/hw/x220.nix>
   ];
 
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.efiSupport = true;
+  boot.loader.grub.efiInstallAsRemovable = true;
+  boot.loader.grub.device = "nodev";
+
+  networking.hostId = "06442b9a";
+
+  fileSystems."/" =
+    { device = "rpool/root";
+      fsType = "zfs";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/0876-B308";
+      fsType = "vfat";
+    };
+
   services.udev.extraRules = ''
     SUBSYSTEM=="net", ATTR{address}=="10:0b:a9:a6:44:04", NAME="wl0"
     SUBSYSTEM=="net", ATTR{address}=="f0:de:f1:d1:90:fc", NAME="et0"
diff --git a/lass/2configs/binary-cache/server.nix b/lass/2configs/binary-cache/server.nix
index 220e41d0..86158c46 100644
--- a/lass/2configs/binary-cache/server.nix
+++ b/lass/2configs/binary-cache/server.nix
@@ -20,7 +20,14 @@
   services.nginx = {
     enable = true;
     virtualHosts.nix-serve = {
-      serverAliases = [ "cache.prism.r" "cache.krebsco.de" "cache.lassul.us" ];
+      serverAliases = [ "cache.prism.r" ];
+      locations."/".extraConfig = ''
+        proxy_pass http://localhost:${toString config.services.nix-serve.port};
+      '';
+    };
+    virtualHosts."cache.krebsco.de" = {
+      serverAliases = [ "cache.lassul.us" ];
+      enableACME = true;
       locations."/".extraConfig = ''
         proxy_pass http://localhost:${toString config.services.nix-serve.port};
       '';
diff --git a/lass/2configs/blue-host.nix b/lass/2configs/blue-host.nix
index 83c235f3..fba99674 100644
--- a/lass/2configs/blue-host.nix
+++ b/lass/2configs/blue-host.nix
@@ -1,23 +1,114 @@
 { config, lib, pkgs, ... }:
 with import <stockholm/lib>;
+let
+  all_hosts = [
+    "icarus"
+    "shodan"
+    "daedalus"
+    "skynet"
+    "prism"
+  ];
+  remote_hosts = filter (h: h != config.networking.hostName) all_hosts;
 
-{
+in {
   imports = [
     <stockholm/lass/2configs/container-networking.nix>
+    { #hack for already defined
+      systemd.services."container@blue".reloadIfChanged = mkForce false;
+      systemd.services."container@blue".preStart = ''
+        ${pkgs.mount}/bin/mount | ${pkgs.gnugrep}/bin/grep -q '^encfs on /var/lib/containers/blue'
+      '';
+      systemd.services."container@blue".preStop = ''
+        /run/wrappers/bin/fusermount -u /var/lib/containers/blue
+      '';
+    }
   ];
-  systemd.services."container@blue".reloadIfChanged = mkForce false;
+
+  system.activationScripts.containerPermissions = ''
+    mkdir -p /var/lib/containers
+    chmod 711 /var/lib/containers
+  '';
+
   containers.blue = {
     config = { ... }: {
-      environment.systemPackages = [ pkgs.git ];
+      environment.systemPackages = [
+        pkgs.git
+        pkgs.rxvt_unicode.terminfo
+      ];
       services.openssh.enable = true;
       users.users.root.openssh.authorizedKeys.keys = [
         config.krebs.users.lass.pubkey
       ];
     };
-    autoStart = true;
+    autoStart = false;
     enableTun = true;
     privateNetwork = true;
     hostAddress = "10.233.2.9";
     localAddress = "10.233.2.10";
   };
+
+
+  systemd.services = builtins.listToAttrs (map (host:
+    let
+    in nameValuePair "sync-blue-${host}" {
+    bindsTo = [ "container@blue.service" ];
+    wantedBy = [ "container@blue.service" ];
+    # ssh needed for rsync
+    path = [ pkgs.openssh ];
+    serviceConfig = {
+      Restart = "always";
+      RestartSec = 10;
+      ExecStart = pkgs.writeDash "sync-blue-${host}" ''
+        set -efu
+        #make sure blue is running
+        /run/wrappers/bin/ping -c1 blue.r > /dev/null
+
+        #make sure the container is unlocked
+        ${pkgs.mount}/bin/mount | ${pkgs.gnugrep}/bin/grep -q '^encfs on /var/lib/containers/blue'
+
+        #make sure our target is reachable
+        ${pkgs.untilport}/bin/untilport ${host}.r 22 2>/dev/null
+
+        #start sync
+        ${pkgs.lsyncd}/bin/lsyncd -log scarce ${pkgs.writeText "lsyncd-config.lua" ''
+          settings {
+            nodaemon = true,
+            inotifyMode = "CloseWrite or Modify",
+          }
+          sync {
+            default.rsyncssh,
+            source = "/var/lib/containers/.blue",
+            host = "${host}.r",
+            targetdir = "/var/lib/containers/.blue",
+            rsync = {
+              owner = true,
+              group = true,
+            };
+            ssh = {
+              binary = "${pkgs.openssh}/bin/ssh";
+              identityFile = "/var/lib/containers/blue/home/lass/.ssh/id_rsa",
+            },
+          }
+        ''}
+      '';
+    };
+    unitConfig.ConditionPathExists = "!/var/run/ppp0.pid";
+    }
+  ) remote_hosts);
+
+  environment.systemPackages = [
+    (pkgs.writeDashBin "start-blue" ''
+      set -ef
+      if ! $(mount | ${pkgs.gnugrep}/bin/grep -qi '^encfs on /var/lib/containers/blue'); then
+        ${pkgs.encfs}/bin/encfs --public /var/lib/containers/.blue /var/lib/containers/blue
+      fi
+      nixos-container start blue
+      nixos-container run blue -- nixos-rebuild -I /var/src dry-build
+      if ping -c1 blue.r >/dev/null; then
+        echo 'blue is already running. bailing out'
+        exit 23
+      fi
+      nixos-container run blue -- nixos-rebuild -I /var/src switch
+    '')
+  ];
 }
diff --git a/lass/2configs/exim-smarthost.nix b/lass/2configs/exim-smarthost.nix
index bf43ee7d..9bb70d1c 100644
--- a/lass/2configs/exim-smarthost.nix
+++ b/lass/2configs/exim-smarthost.nix
@@ -92,6 +92,7 @@ with import <stockholm/lib>;
       { from = "ccc@lassul.us"; to = lass.mail; }
       { from = "neocron@lassul.us"; to = lass.mail; }
       { from = "osmocom@lassul.us"; to = lass.mail; }
+      { from = "lesswrong@lassul.us"; to = lass.mail; }
     ];
     system-aliases = [
       { from = "mailer-daemon"; to = "postmaster"; }
diff --git a/lass/2configs/fetchWallpaper.nix b/lass/2configs/fetchWallpaper.nix
index e756c342..065ee9c4 100644
--- a/lass/2configs/fetchWallpaper.nix
+++ b/lass/2configs/fetchWallpaper.nix
@@ -7,7 +7,6 @@ in {
     enable = true;
     unitConfig.ConditionPathExists = "!/var/run/ppp0.pid";
     url = "prism/realwallpaper-krebs.png";
-    maxTime = 10;
   };
 }
 
diff --git a/lass/2configs/mail.nix b/lass/2configs/mail.nix
index 46939c97..9ea91ae1 100644
--- a/lass/2configs/mail.nix
+++ b/lass/2configs/mail.nix
@@ -31,6 +31,7 @@ let
   '';
 
   mailboxes = {
+    afra = [ "to:afra@afra-berlin.de" ];
     c-base = [ "to:c-base.org" ];
     coins = [
       "to:btce@lassul.us"
@@ -46,11 +47,14 @@ let
     ];
     dezentrale = [ "to:dezentrale.space" ];
     dhl = [ "to:dhl@lassul.us" ];
+    dn42 = [ "to:dn42@lists.nox.tf" ];
     eloop = [ "to:eloop.org" ];
     github = [ "to:github@lassul.us" ];
     gmail = [ "to:gmail@lassul.us" "to:lassulus@gmail.com" "lassulus@googlemail.com" ];
+    india = [ "to:hillhackers@lists.hillhacks.in" "to:hackbeach@lists.hackbeach.in" ];
     kaosstuff = [ "to:gearbest@lassul.us" "to:banggood@lassul.us" "to:tomtop@lassul.us" ];
     lugs = [ "to:lugs@lug-s.org" ];
+    meetup = [ "to:meetup@lassul.us" ];
     nix = [ "to:nix-devel@googlegroups.com" "to:nix@lassul.us" ];
     patreon = [ "to:patreon@lassul.us" ];
     paypal = [ "to:paypal@lassul.us" ];
diff --git a/lass/2configs/monitoring/prometheus-server.nix b/lass/2configs/monitoring/prometheus-server.nix
index aef67163..b7083c77 100644
--- a/lass/2configs/monitoring/prometheus-server.nix
+++ b/lass/2configs/monitoring/prometheus-server.nix
@@ -177,7 +177,8 @@
       addr = "0.0.0.0";
       domain = "grafana.example.com";
       rootUrl = "https://grafana.example.com/";
-      security = import <secrets/grafana_security.nix>; # { AdminUser = ""; adminPassword = ""}
+      auth.anonymous.enable = true;
+      auth.anonymous.org_role = "Admin";
     };
   };
   services.logstash = {
diff --git a/lass/2configs/radio.nix b/lass/2configs/radio.nix
index bf685580..85faded1 100644
--- a/lass/2configs/radio.nix
+++ b/lass/2configs/radio.nix
@@ -62,8 +62,23 @@ in {
     extraConfig = ''
       audio_output {
         type        "shout"
+        encoding    "lame"
+        name        "the_playlist_mp3"
+        host        "localhost"
+        port        "8000"
+        mount       "/radio.mp3"
+        password    "${source-password}"
+        bitrate     "128"
+
+        format      "44100:16:2"
+
+        user        "source"
+        genre       "good music"
+      }
+      audio_output {
+        type        "shout"
         encoding    "ogg"
-        name        "the_playlist"
+        name        "the_playlist_ogg"
         host        "localhost"
         port        "8000"
         mount       "/radio.ogg"
diff --git a/lass/2configs/websites/domsen.nix b/lass/2configs/websites/domsen.nix
index 828cab95..4935268a 100644
--- a/lass/2configs/websites/domsen.nix
+++ b/lass/2configs/websites/domsen.nix
@@ -139,6 +139,13 @@ in {
     ssl_key = "/var/lib/acme/lassul.us/key.pem";
   };
 
+  users.users.xanf = {
+    uid = genid_uint31 "xanf";
+    home = "/home/xanf";
+    useDefaultShell = true;
+    createHome = true;
+  };
+
   users.users.domsen = {
     uid = genid_uint31 "domsen";
     description = "maintenance acc for domsen";
diff --git a/lass/krops.nix b/lass/krops.nix
index a898164c..c2669c8f 100644
--- a/lass/krops.nix
+++ b/lass/krops.nix
@@ -5,6 +5,12 @@
     pkgs
   ;
 
+  host-source = if lib.pathExists (./. + "/1systems/${name}/source.nix") then
+    import (./. + "/1systems/${name}/source.nix") { inherit lib pkgs; }
+  else
+    {}
+  ;
+
   source = { test }: lib.evalSource [
     krebs-source
     {
@@ -18,15 +24,24 @@
         };
       };
     }
+    host-source
   ];
 
 in {
+
   # usage: $(nix-build --no-out-link --argstr name HOSTNAME -A deploy)
   deploy = { target ? "root@${name}/var/src" }: pkgs.krops.writeDeploy "${name}-deploy" {
     source = source { test = false; };
     inherit target;
   };
 
+  # usage: $(nix-build --no-out-link --argstr name HOSTNAME --argstr target PATH -A populate)
+  populate = { target, force ? false }: pkgs.populate {
+    inherit force;
+    source = source { test = false; };
+    target = lib.mkTarget target;
+  };
+
   # usage: $(nix-build --no-out-link --argstr name HOSTNAME --argstr target PATH -A test)
   test = { target }: pkgs.krops.writeTest "${name}-test" {
     force = true;
diff --git a/makefu/1systems/omo/config.nix b/makefu/1systems/omo/config.nix
index 9eb8cbf4..260f9608 100644
--- a/makefu/1systems/omo/config.nix
+++ b/makefu/1systems/omo/config.nix
@@ -63,9 +63,17 @@ in {
       }