diff --git a/README.md b/README.md
index acf008c..e61689a 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,9 @@ Notes
 - All commands return either 0 (success/running) or 1 (failure/stopped).
 - djs-status prints the daemon's process ID (PID).
 - Special shell characters (e.g., "|", ";", "&") must be quoted or escaped. For the sake of simplicity and consistency, single-quote all arguments as a whole (e.g., djsc -a '2200 reboot -p').
+- PATH starts with /data/adb/vr25/bin:/dev/.vr25/busybox.
+This means schedules don't require additional busybox setup.
+The first directory holds user executables.
 ```
 
 ---
@@ -178,23 +181,6 @@ Open issues on GitHub or contact the developer on Telegram/XDA (linked below). A
 ## LATEST CHANGES
 
 
-**v2019.10.18 (201910180)**
-
-- `: --boot` and `: --delete` flags
-- Attribute back-end files ownership to front-end app
-- Automatically copy installation log to <front-end app data>/files/logs/
-- Back-end can be upgraded from Magisk Manager, EX/FK Kernel Manager, and similar apps
-- `bundle.sh` - bundler for front-end app
--  `djs-version`: prints `versionCode` (integer)
-- Fixed schedule deletion and busybox handling issues
-- Flashable uninstaller: `/sdcard/djs-uninstaller.zip`
-- Major optimizations
-- Prioritize `nano -l` for text editing
-- Richer installation and initialization logs (/data/adb/djs-data/logs/)
-- Updated `build.sh` and documentation
-- Workaround for front-end autostart blockage (Magisk service.d script)
-
-
 **v2021.7.28 (202107280)**
 
 - Fixed issues.
@@ -205,3 +191,9 @@ Open issues on GitHub or contact the developer on Telegram/XDA (linked below). A
 **v2021.8.2 (202108020)**
 
 - Fixed AccA related issues.
+
+
+**v2021.8.9.1 (202108091)**
+
+- Rewritten daemon logic for better efficiency and reliability.
+- Updated documentation
diff --git a/djs/djs-config.sh b/djs/djs-config.sh
index 022b27b..e54914b 100644
--- a/djs/djs-config.sh
+++ b/djs/djs-config.sh
@@ -58,6 +58,10 @@ Usage: djsc|djs-config OPTION ARGS
 
 -l|--list 'PATTERN' (default ".", meaning "all lines")
   e.g., djsc -l '^boot'
+
+Note: PATH starts with /data/adb/vr25/bin:/dev/.vr25/busybox.
+This means schedules don't require additional busybox setup.
+The first directory holds user executables.
 CAT
     ;;
   esac
diff --git a/djs/djs.sh b/djs/djs.sh
index 94a2717..7de2de1 100644
--- a/djs/djs.sh
+++ b/djs/djs.sh
@@ -7,7 +7,6 @@
 exec > /dev/null 2>&1
 
 set -u
-IFS=$(printf '\t\n')
 tmpDir=/dev/.vr25/djs
 execDir=/data/adb/vr25/djs
 config=${execDir}-data/config.txt
@@ -72,27 +71,30 @@ ln -sf $execDir/djs-version.sh /dev/djs-version
 
 
 # boot schedules
-for schedule in $(getv '^boot | : --boot'); do
-  if ! grep -q "$schedule" $tmpDir/boot 2>/dev/null; then
-    echo "$schedule" >> $tmpDir/boot
-    (unset IFS; set +u; eval "$(echo "$schedule" | sed 's#^.... ##')" &) &
-  fi
-done
+if [ ! -f $tmpDir/boot.sh ]; then
+  echo "#!/system/bin/sh" > $tmpDir/boot.sh
+  grep '^boot | : --boot' $config | sed 's/^.... //' >> $tmpDir/boot.sh
+  echo 'exit $?' >> $tmpDir/boot.sh
+  chmod u+x $tmpDir/boot.sh
+  start-stop-daemon -bx $tmpDir/boot.sh -S --
+  grep -q '^boot .* : --delete' $config && sed -i '/^boot .* : --delete/d' $config
+fi
 
+# HH:MM schedules
 while :; do
-  # HH:MM schedules
-  for schedule in $(getv '^[0-2].[0-5][0-9]'); do
-    if [ $(date +%H%M) -eq $(echo "$schedule" | grep -o '^.... ') ]; then
-      if ! grep -q "$schedule" $tmpDir/HH:MM 2>/dev/null; then
-        echo "$schedule" >> $tmpDir/HH:MM
-        (unset IFS; set +u; eval "$(echo "$schedule" | sed 's#^.... ##')" &) &
-        (sleep 60; sed -i "\#$schedule#d" $tmpDir/HH:MM &) &
-        echo "$schedule" | grep -q ' : --delete' && sed -i "\#$schedule#d" $config
-        sleep 1
-      fi
-    fi
+  time=$(date +%H%M)
+  echo "#!/system/bin/sh" > $tmpDir/${time}.sh
+  if grep "^$time " $config | sed 's/^.... //' >> $tmpDir/${time}.sh; then
+    echo 'rm $0' >> $tmpDir/${time}.sh
+    echo 'exit $?' >> $tmpDir/${time}.sh
+    chmod u+x $tmpDir/${time}.sh
+    grep -q ' : --delete' $tmpDir/${time}.sh && sed -i "/^$time .* : --delete/d" $config
+    start-stop-daemon -bx $tmpDir/${time}.sh -S --
+  fi
+  sleep 40
+  while [ $(date +%H%M) -eq $time ]; do
+    sleep 10
   done
-  sleep 20
 done
 
 exit $?
diff --git a/module.prop b/module.prop
index 6d1000a..3032c3f 100644
--- a/module.prop
+++ b/module.prop
@@ -1,6 +1,6 @@
 id=djs
 name=Daily Job Scheduler (DJS)
-version=2021.8.2
-versionCode=202108020
+version=v2021.8.9.1
+versionCode=202108091
 author=VR25
 description=Runs commands and scripts on boot and at HH:MM. Any root solution is supported. The installation is always "system-less", whether or not the system is rooted with Magisk.