diff --git a/update_mnemonic_medium.sh b/update_mnemonic_medium.sh
index a3a6573c..8cb8beaf 100755
--- a/update_mnemonic_medium.sh
+++ b/update_mnemonic_medium.sh
@@ -1,27 +1,43 @@
+#!/bin/zsh
 PROJECT="$(dirname "${0}")"
 LESSONS_DIR="$HOME/Library/Mobile Documents/iCloud~md~obsidian/Documents/Life Lessons iCloud" 
 RUN_EVERY_N_SECONDS=120
 
+# Redirect stdout ( > ) into a named pipe ( >() ) running "tee"
+exec > >(tee -a logs/shell_script.log)
+# Redirect stderr into stdout ( 2>&1 ), then redirect stdout into a named pipe running "tee"
+exec 2>&1
+
+log() {
+    # Assign the date and time stamp, in "DD:MM-HH:MM:SS" format
+    TIME_STAMP=$(date +"%d/%m %H:%M:%S")
+    # Assign the current user
+    USER=$(whoami)
+    # Write to the file *and* echo to stdout
+    mkdir -p logs
+    echo "$USER - $TIME_STAMP - $1"
+}
+
 while true; do
     # If Anki.app is not already running, launch it
     ANKI_COUNT=$(ps -ax | grep -c "Applications\/Anki.app")
     if (($ANKI_COUNT == 0));
     then
-        echo "🧠 Launching Anki"
+        log "🧠 Launching Anki"
         open -a Anki
     fi
 
-    echo "🧠 Updating personal mnemonic medium with scripts in $PROJECT"
+    log "🧠 Updating personal mnemonic medium with scripts in $PROJECT"
     cd $PROJECT
     source .venv/bin/activate
 
-    echo "🧠 \"$LESSONS_DIR\""
+    log "🧠 \"$LESSONS_DIR\""
     python application/main.py -r "$LESSONS_DIR" -p "$PROJECT/Life.apkg"
 
     # Send "y" keypress to Anki.app to start sync
     # osascript -e 'tell application "Anki" to activate' 
     # osascript -e 'tell application "System Events" to keystroke "y"'
-    echo "🧠 Finished syncing"
+    log "🧠 Finished syncing"
     sleep $RUN_EVERY_N_SECONDS
 done