diff --git a/modules/workspace/i3blocks/default.nix b/modules/workspace/i3blocks/default.nix
index e09c029..77260fa 100644
--- a/modules/workspace/i3blocks/default.nix
+++ b/modules/workspace/i3blocks/default.nix
@@ -38,9 +38,9 @@ in {
     interval=60
     markup=pango
   '' + genIniOrdered (optional (!isNull config.secrets.mail) (scr "email")
-    ++ [ (scrint "weather" 600) (scr "calendar") (scr "emacs") ]
+    ++ [ (scrint "weather" 600) (scr "calendar") (scr "emacs") (scr "nixos")  ]
     ++ optional (!isNull config.secrets.wage) (scrint "youtrack-wage" 3600)
-    ++ [ (scrint "music" 10) (scrint "sound" 5) ] ++ [
+    ++ [ (scrint "music" 3) (scrint "sound" 1) ] ++ [
       (scrint "cpu" 5)
       (scrint "freq" 10)
       (scr "temperature")
@@ -50,5 +50,5 @@ in {
       (scrint "brightness" 5)
     ]
     ++ optional (config.deviceSpecific.devInfo ? bigScreen) (scrint "network" 1)
-    ++ [ (scrint "connections" 10) (scr "df") (scr "date") (scrint "time" 1) ]);
+    ++ [ (scrint "bluetooth" 3) (scrint "connections" 3) (scr "df") (scr "date") (scrint "time" 1) ]);
 }
diff --git a/modules/workspace/i3blocks/scripts/battery.nix b/modules/workspace/i3blocks/scripts/battery.nix
index b2c494c..576a1b4 100644
--- a/modules/workspace/i3blocks/scripts/battery.nix
+++ b/modules/workspace/i3blocks/scripts/battery.nix
@@ -5,18 +5,18 @@
   CHARGE=`awk -F'[,%] ' '{print $2}' <<< "$BATTERY" | tr -d "%"`
   TIME=`awk -F', ' '{print $3}' <<< "$BATTERY" | cut -d " " -f 1 | cut -d: -f1-2`
   case "$STATUS" in
-    Full) ;& "Not charging") icon=; TEXT="FULL"; status=0
+    Full) ;& "Not charging") icon=; TEXT="FULL"; status=0
     ;;
     Charging) 
       TEXT="$CHARGE% ($TIME)"
       status=0
       case $CHARGE in
-        [2-3]*) icon=;;
-        [4-5]*) icon=;;
-        [6-7]*) icon=;;
-        [8-9]*) icon=;;
-        100) icon=;;
-        *) icon=;;
+        [2-3]*) icon=;;
+        [4-5]*) icon=;;
+        [6-7]*) icon=;;
+        [8-9]*) icon=;;
+        100) icon=;;
+        *) icon=;;
       esac
     ;;
     Discharging)
@@ -28,17 +28,17 @@
       fi
       TEXT="$CHARGE% ($TIME)";
       case $CHARGE in
-        1?) icon=;;
-        2?) icon=;;
-        3?) icon=;;
-        4?) icon=;;
-        5?) icon=;;
-        6?) icon=;;
-        7?) icon=;;
-        8?) icon=;;
-        9?) icon=;;
-        100) icon=;;
-        *) ;;
+        1?) icon=;;
+        2?) icon=;;
+        3?) icon=;;
+        4?) icon=;;
+        5?) icon=;;
+        6?) icon=;;
+        7?) icon=;;
+        8?) icon=;;
+        9?) icon=;;
+        100) icon=;;
+        *) ;;
       esac
     ;;
   esac
diff --git a/modules/workspace/i3blocks/scripts/bluetooth.nix b/modules/workspace/i3blocks/scripts/bluetooth.nix
new file mode 100644
index 0000000..988347e
--- /dev/null
+++ b/modules/workspace/i3blocks/scripts/bluetooth.nix
@@ -0,0 +1,21 @@
+{ iconfont, bash, bluez, pulseaudio, utillinux, ... }:
+''
+  #!${bash}/bin/bash
+  if ${utillinux}/bin/rfkill | grep bluetooth > /dev/null; then
+    if ${utillinux}/bin/rfkill | grep bluetooth | grep blocked > /dev/null; then
+      if ${bluez}/bin/bluetoothctl info > /dev/null; then
+        if ${pulseaudio}/bin/pactl list sinks | grep bluez > /dev/null; then
+          echo ""
+          exit 33
+        else
+          echo ""
+        fi
+      else
+        echo ""
+      fi
+    else
+      echo ""
+      exit 33
+    fi
+  fi
+''
diff --git a/modules/workspace/i3blocks/scripts/connections.nix b/modules/workspace/i3blocks/scripts/connections.nix
index 455cddc..ef06187 100644
--- a/modules/workspace/i3blocks/scripts/connections.nix
+++ b/modules/workspace/i3blocks/scripts/connections.nix
@@ -5,56 +5,58 @@
   for connection in $CONNECTIONS
   do
     grep wifi <<< $connection > /dev/null && {
-      SIGNAL=$(${networkmanager}/bin/nmcli d w | grep '^\*' | tr -s ' ' | cut -d' ' -f7)
-      if [[ $SIGNAL -lt 20 ]]
-      then
-        text+=冷
-      elif [[ $SIGNAL -lt 40 ]]
-      then
-        text+=爛
-      elif [[ $SIGNAL -lt 60 ]]
-      then
-        text+=嵐
-      elif [[ $SIGNAL -lt 80 ]]
-      then
-        text+=襤
-      else
-        text+=蠟
-      fi
+      # SIGNAL=$(${networkmanager}/bin/nmcli d w | grep '^\*' | tr -s ' ' | cut -d' ' -f7)
+      # if [[ $SIGNAL -lt 20 ]]
+      # then
+      #   text+=冷
+      # elif [[ $SIGNAL -lt 40 ]]
+      # then
+      #   text+=爛
+      # elif [[ $SIGNAL -lt 60 ]]
+      # then
+      #   text+=嵐
+      # elif [[ $SIGNAL -lt 80 ]]
+      # then
+      #   text+=襤
+      # else
+      #   text+=蠟
+      # fi
+      text=
     }
     grep gsm <<< $connection >/dev/null && {
       MODEM=$(${modemmanager}/bin/mmcli -K -L | tail -1 | cut -d: -f2 | tr -d ' ')
       STATUS=$(${modemmanager}/bin/mmcli -K -m $MODEM)
       TECH=$(grep "modem.generic.access-technologies.value\[1\]" <<< $STATUS | cut -d: -f2 | tr -d ' ')
-    
-      SIGNAL=$(grep "modem.generic.signal-quality.value" <<< $STATUS | cut -d: -f2 | tr -d ' ')
-      if [[ $SIGNAL -lt 20 ]]
-      then
-        text+=""
-      elif [[ $SIGNAL -lt 40 ]]
-      then
-        text+=""
-      elif [[ $SIGNAL -lt 60 ]]
-      then
-        text+=""
-      elif [[ $SIGNAL -lt 80 ]]
-      then
-        text+=""
-      else
-        text+=""
-      fi
+
+      # SIGNAL=$(grep "modem.generic.signal-quality.value" <<< $STATUS | cut -d: -f2 | tr -d ' ')
+      # if [[ $SIGNAL -lt 20 ]]
+      # then
+      #   text+=""
+      # elif [[ $SIGNAL -lt 40 ]]
+      # then
+      #   text+=""
+      # elif [[ $SIGNAL -lt 60 ]]
+      # then
+      #   text+=""
+      # elif [[ $SIGNAL -lt 80 ]]
+      # then
+      #   text+=""
+      # else
+      #   text+=""
+      # fi
+      text+=
       if [[ $TECH == lte ]]
       then
-        text+=""
+        text+="ﰒ"
       else
-        text+=""
+        text+="ﰑ"
       fi
     }
-    grep ethernet <<< $connection > /dev/null && text+=""
+    grep ethernet <<< $connection > /dev/null && text+=""
   done
   code=0
   [[ $text == "" ]] && {
-    text=
+    text=
     code=33
   }
   echo "<span font='${iconfont}'>$text</span>"
diff --git a/modules/workspace/i3blocks/scripts/default.nix b/modules/workspace/i3blocks/scripts/default.nix
index 3496aa6..30f3c02 100644
--- a/modules/workspace/i3blocks/scripts/default.nix
+++ b/modules/workspace/i3blocks/scripts/default.nix
@@ -1,33 +1,40 @@
 p: c:
 with p;
-builtins.mapAttrs (name: value:
-stdenv.mkDerivation {
-  inherit name;
-  src = value;
-  unpackPhase = "true";
-  buildInputs = [ghc];
-  buildPhase = "ghc -o $out $src";
-  installPhase = "true";
-}) {
+let
+  iconfont = "Material Icons";
+  buildHaskellScript = name: script:
+  stdenv.mkDerivation {
+    inherit name;
+    src = script;
+    unpackPhase = "true";
+    buildInputs = [ghc];
+    buildPhase = "ghc -o $out $src";
+    installPhase = "true";
+    ICONFONT = iconfont;
+  };
+  writeScript = name: script:
+  writeTextFile {
+    inherit name;
+    text = callPackage script {
+      inherit iconfont;
+      config = c;
+    };
+    executable = true;
+    checkPhase =
+      "${bash}/bin/bash -n $src || ${python3}/bin/python3 -m compileall $src";
+  };
+in
+builtins.mapAttrs buildHaskellScript {
   free = ./free.hs;
   temperature = ./temperature.hs;
   network = ./network.hs;
-} // builtins.mapAttrs (name: value:
-writeTextFile {
-  inherit name;
-  text = callPackage value {
-    iconfont = "Material Design Icons";
-    config = c;
-  };
-  executable = true;
-  checkPhase =
-  "${bash}/bin/bash -n $src || ${python3}/bin/python3 -m compileall $src";
-}) {
+} // builtins.mapAttrs writeScript {
   battery = ./battery.nix;
   brightness = ./brightness.nix;
   calendar = ./calendar.nix;
   email = ./email.nix;
   emacs = ./emacs.nix;
+  bluetooth = ./bluetooth.nix;
   connections = ./connections.nix;
   weather = ./weather.nix;
   sound = ./sound.nix;
@@ -35,9 +42,10 @@ writeTextFile {
   youtrack-wage = ./youtrack-wage.nix;
   cpu = {...}: ''top -b -n1 -p 1 | fgrep "Cpu(s)" | tail -1 | awk -F'id,' -v prefix="$prefix" '{ split($1, vs, ","); v=vs[length(vs)]; sub("%", "", v); printf "%s%.1f%%\n", prefix, 100 - v }' '';
   freq = {...}: ''echo $(${pkgs.bc}/bin/bc -l <<< "scale=2; `cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq|sort|tail -1`/1000000") GHz'';
-  df = {...}: ''echo '<span font="Material Icons 11"></span>' `df / | tail -1 | grep -o '..%'`'';
-  date = {...}: "${pkgs.coreutils}/bin/date +'<span font=\"Material Icons 11\"></span> %a %y-%m-%d'";
-  time = {...}: "${pkgs.coreutils}/bin/date +'<span font=\"Material Icons 11\"></span> %T'";
+  df = {...}: ''echo '<span font="${iconfont}"></span>' `df / | tail -1 | grep -o '..%'`'';
+  date = {...}: "${pkgs.coreutils}/bin/date +'<span font=\"${iconfont}\"></span> %a %y-%m-%d'";
+  time = {...}: "${pkgs.coreutils}/bin/date +'<span font=\"${iconfont}\"></span> %T'";
+  nixos = {...}: "echo -n '<span font=\"Material Icons 13\"></span>'; cat /run/current-system/nixos-version | cut -d. -f3";
   #temperature = ./temperature.nix;
   #free = ./free.nix;
 }
diff --git a/modules/workspace/i3blocks/scripts/emacs.nix b/modules/workspace/i3blocks/scripts/emacs.nix
index d5c3aa6..53c3cd8 100644
--- a/modules/workspace/i3blocks/scripts/emacs.nix
+++ b/modules/workspace/i3blocks/scripts/emacs.nix
@@ -1,4 +1,7 @@
-{...}: ''
-  [[ $BLOCK_BUTTON -eq 2 ]] && emacsclient --eval "(org-clock-out)" > /dev/null
-  emacsclient --eval "org-mode-line-string" | head -1 | cut -d\" -f 2
+{ config, ... }:
+let ec = "${config.home-manager.users.balsoft.programs.emacs.finalPackage}/bin/emacsclient";
+in
+''
+  [[ $BLOCK_BUTTON -eq 2 ]] && ${ec} --eval "(org-clock-out)" > /dev/null
+  ${ec} --eval "org-mode-line-string" | head -1 | cut -d\" -f 2
 ''
diff --git a/modules/workspace/i3blocks/scripts/email.nix b/modules/workspace/i3blocks/scripts/email.nix
index 139a39b..556deca 100644
--- a/modules/workspace/i3blocks/scripts/email.nix
+++ b/modules/workspace/i3blocks/scripts/email.nix
@@ -5,6 +5,9 @@
   obj.login("${config.secrets.mail.user}@${config.secrets.mail.host}", "${config.secrets.mail.password}")
   obj.select()
   l = len(obj.search(None, 'unseen')[1][0].split())
-  print('<span font="${iconfont}"></span> %s' % str(l))
-  exit(33 if l != 0 else 0)
+  if l == 0:
+    print('')
+  else:
+    print('<span font="${iconfont}">﯍</span> %s' % str(l))
+    exit(33)
 ''
diff --git a/modules/workspace/i3blocks/scripts/music.nix b/modules/workspace/i3blocks/scripts/music.nix
index be995e6..af2fa33 100644
--- a/modules/workspace/i3blocks/scripts/music.nix
+++ b/modules/workspace/i3blocks/scripts/music.nix
@@ -8,12 +8,11 @@
     if BLOCK_BUTTON == "1": call(["${playerctl}/bin/playerctl", "play-pause"])
     if BLOCK_BUTTON == "2": call(["${playerctl}/bin/playerctl", "stop"])
     if BLOCK_BUTTON == "3": call(["${playerctl}/bin/playerctl", "next"])
-  if status == "Paused": 
-    icon=""
-  elif status == "Playing": 
-    icon=""
-  else: 
-    icon = ""
-  text = getoutput("${playerctl}/bin/playerctl metadata title")[:20:]
+  if status == "Paused" or status == "Playing":
+    text = getoutput("${playerctl}/bin/playerctl metadata title")[:20:]
+    icon = ""
+  else:
+    text = ""
+    icon = ""
   print("<span font='${iconfont}'>%s</span> %s" % (icon, text.replace('&', '&amp;')))
 ''
diff --git a/modules/workspace/i3blocks/scripts/network.hs b/modules/workspace/i3blocks/scripts/network.hs
index 663e0c2..3454610 100644
--- a/modules/workspace/i3blocks/scripts/network.hs
+++ b/modules/workspace/i3blocks/scripts/network.hs
@@ -1,9 +1,12 @@
-{-# LANGUAGE BangPatterns #-}
+{-# LANGUAGE BangPatterns, TemplateHaskell #-}
 
 import Control.Concurrent (threadDelay)
-import Control.Monad (mapM)
+import Control.Monad (mapM, join)
 import System.Directory (listDirectory)
 import Data.Bool (bool)
+import Language.Haskell.TH.Syntax (liftString, runIO)
+import System.Environment (getEnv)
+import Control.Monad.IO.Class (liftIO)
 
 path :: String
 path = "/sys/class/net/"
@@ -17,7 +20,7 @@ instance Monoid Statistics where
   mempty = Statistics 0 0
 
 icon :: String -> String
-icon i = "<span font='Material Icons 11'>" ++ i ++ "</span>"
+icon i = "<span font='"++ $(join $ liftIO $ liftString <$> getEnv "ICONFONT") ++ "'>" ++ i ++ "</span>"
 
 readInterface :: FilePath -> IO Statistics
 readInterface interface = do 
diff --git a/modules/workspace/i3blocks/scripts/sound.nix b/modules/workspace/i3blocks/scripts/sound.nix
index f78254c..e021a96 100644
--- a/modules/workspace/i3blocks/scripts/sound.nix
+++ b/modules/workspace/i3blocks/scripts/sound.nix
@@ -9,19 +9,19 @@
   then
     volume=""
     end=""
-    icon=""
+    icon="婢"
   else
     volume=`${pamixer}/bin/pamixer --get-volume`
     end="%"
     if [[ $volume -lt 33 ]]
     then
-      icon=""
+      icon="奄"
     else
       if [[ $volume -lt 66 ]]
       then
-        icon=""
+        icon="奔"
       else
-        icon=""
+        icon="墳"
         code=33
       fi
     fi
diff --git a/modules/workspace/i3blocks/scripts/temperature.hs b/modules/workspace/i3blocks/scripts/temperature.hs
index 722b7b9..9f0a28d 100644
--- a/modules/workspace/i3blocks/scripts/temperature.hs
+++ b/modules/workspace/i3blocks/scripts/temperature.hs
@@ -1,11 +1,19 @@
+{-# LANGUAGE TemplateHaskell, OverloadedStrings #-}
+
+import Prelude hiding (readFile)
 import System.Directory
 import System.FilePath
-import Control.Monad (forM)
+import Control.Monad (forM, join)
 import System.Posix.Files
 import Data.List (isPrefixOf, isInfixOf)
 import System.Exit
-
-
+import Language.Haskell.TH.Syntax (liftString, runIO)
+import System.Environment (getEnv)
+import Control.Monad.IO.Class (liftIO)
+import Data.Maybe (catMaybes)
+import Control.Exception
+import Data.Text (unpack)
+import Data.Text.IO (readFile)
 
 -- | Traverse from 'top' directory and return all the files by
 -- filtering with 'include' predicate.
@@ -31,7 +39,7 @@ getTemps = do
       -> ("hwmon" `isPrefixOf` name)
       || ("temp" `isInfixOf` name) && ("input" `isInfixOf` name)
     )
-  fmap (round .(/1000) . read) <$> traverse (readFile) hwmons
+  fmap (round . (/1000) . read . unpack) <$> traverse (handle (\e -> do pure (e :: IOException); pure "0") . readFile) hwmons
   
 -- | Get a symbol corresponding to the temperature
 getSymbol :: Integral n => n -> String
@@ -40,6 +48,9 @@ getSymbol t
   | t < 80    = "\57866" -- 
   | otherwise = "\57867" -- 
 
+icon :: String -> String
+icon s = "<span font='"++ $(join $ liftIO $ liftString <$> getEnv "ICONFONT") ++ "'>" ++ s ++ "</span>"
+
 main :: IO ()
 main = do
   maxTemp <- maximum <$> getTemps
diff --git a/modules/workspace/i3blocks/scripts/youtrack-wage.nix b/modules/workspace/i3blocks/scripts/youtrack-wage.nix
index 99de5cb..4d58289 100644
--- a/modules/workspace/i3blocks/scripts/youtrack-wage.nix
+++ b/modules/workspace/i3blocks/scripts/youtrack-wage.nix
@@ -1,6 +1,11 @@
 { bash, yt-utilities, libqalculate, config, lib, ... }:
+let ec = config.home-manager.users.balsoft.programs.emacs.finalPackage;
+in
 ''
   #!${bash}/bin/bash
+  set -euo pipefail
+  export PATH="$PATH:${yt-utilities}/bin:${ec}/bin:${libqalculate}/bin"
+
   HOURS_DAY=$(yt org local --since $(date +'%Y-%m-%d') | tail -1)
   HOURS_MONTH=$(yt org local --since $(date +'%Y-%m-01') | tail -1)
   HOURS_YEAR=$(yt org local --since $(date +'%Y-01-01') | tail -1)