diff --git a/main_script.sh b/main_script.sh
index 927f3a3..fd2b8fb 100755
--- a/main_script.sh
+++ b/main_script.sh
@@ -58,236 +58,245 @@ pause_if_debug() {
     fi
 }
 
-#------------------------------------------
-# Script Version 3.0
-#------------------------------------------
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "Script version 3.0"
-color_yellow "----------------------------------------------------------------"
-echo
+# ==========================================
+# ADD THIS GUARD WRAPPER HERE:
+# ==========================================
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
 
-#------------------------------------------
-# OS Detection
-#------------------------------------------
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "Start OS Detection"
-color_yellow "----------------------------------------------------------------"
-echo
-
-source /etc/os-release
-
-OS_ID="${ID,,}"
-OS_LIKE="${ID_LIKE:-}"
-OS_LIKE="${OS_LIKE,,}"
-OS_VERSION="${VERSION_ID:-unknown}"
-OS_PRETTY="$PRETTY_NAME"
-OS=""
-
-case "$OS_ID" in
-    arch)   OS="arch" ;;
-    debian) OS="debian" ;;
-    ubuntu) OS="ubuntu" ;;
-    fedora) OS="fedora" ;;
-    *)
-        if [[ "$OS_LIKE" == *"ubuntu"* ]]; then
-            OS="ubuntu"
-        elif [[ "$OS_LIKE" == *"arch"* ]]; then
-            OS="arch"
-        elif [[ "$OS_LIKE" == *"debian"* ]]; then
-            OS="debian"
-        elif [[ "$OS_LIKE" == *"fedora"* || "$OS_LIKE" == *"rhel"* ]]; then
-            OS="fedora"
-        fi
-        ;;
-esac
-
-if [[ -n "$OS" ]]; then
-    color_cyan "----------------------------------------------------------------"
-    color_cyan "Detected OS:" "$OS_PRETTY"
-    color_cyan "Version:" "$OS_VERSION"
-    color_cyan "----------------------------------------------------------------"
-else
-    color_red "----------------------------------------------------------------"
-    color_red "ERROR: Unsupported or unknown Linux distribution."
-    color_red "Detected: ID=" "$OS_ID" "ID_LIKE=" "${OS_LIKE:-empty}"
-    color_red "----------------------------------------------------------------"
-    exit 1
-fi
-
-pause_if_debug
-
-#------------------------------------------
-# Desktop Environment Detection / Selection
-#------------------------------------------
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "Desktop Environment Selection"
-color_yellow "----------------------------------------------------------------"
-echo
-
-DE_RAW="${XDG_CURRENT_DESKTOP:-${DESKTOP_SESSION:-}}"
-DE=""
-
-case "${DE_RAW,,}" in
-    *xfce*)          DE="xfce" ;;
-    *plasma*|*kde*)  DE="plasma" ;;
-    *gnome*)         DE="gnome" ;;
-    ""|none)         DE="" ;;
-esac
-
-if [[ -n "$DE" ]]; then
+    # Put your entire interactive menu, OS detection, exports, 
+    # and the logic that runs the OS_SCRIPT inside here.
+    
     echo
-    color_cyan "----------------------------------------------------------------"
-    color_cyan "Detected Desktop Environment:" "$DE" "${DE_RAW:-unknown}"
-    color_cyan "----------------------------------------------------------------"
-else
+    color_yellow "----------------------------------------------------------------"
+    color_yellow "Script version 3.0"
+    color_yellow "----------------------------------------------------------------"
+
+    #------------------------------------------
+    # OS Detection
+    #------------------------------------------
     echo
-    color_gray "No Desktop Environment detected. Select one to install:"
+    color_yellow "----------------------------------------------------------------"
+    color_yellow "Start OS Detection"
+    color_yellow "----------------------------------------------------------------"
     echo
+
+    source /etc/os-release
+
+    OS_ID="${ID,,}"
+    OS_LIKE="${ID_LIKE:-}"
+    OS_LIKE="${OS_LIKE,,}"
+    OS_VERSION="${VERSION_ID:-unknown}"
+    OS_PRETTY="$PRETTY_NAME"
+    OS=""
+
+    case "$OS_ID" in
+        arch)   OS="arch" ;;
+        debian) OS="debian" ;;
+        ubuntu) OS="ubuntu" ;;
+        fedora) OS="fedora" ;;
+        *)
+            if [[ "$OS_LIKE" == *"ubuntu"* ]]; then
+                OS="ubuntu"
+            elif [[ "$OS_LIKE" == *"arch"* ]]; then
+                OS="arch"
+            elif [[ "$OS_LIKE" == *"debian"* ]]; then
+                OS="debian"
+            elif [[ "$OS_LIKE" == *"fedora"* || "$OS_LIKE" == *"rhel"* ]]; then
+                OS="fedora"
+            fi
+            ;;
+    esac
+
+    if [[ -n "$OS" ]]; then
+        color_cyan "----------------------------------------------------------------"
+        color_cyan "Detected OS:" "$OS_PRETTY"
+        color_cyan "Version:" "$OS_VERSION"
+        color_cyan "----------------------------------------------------------------"
+    else
+        color_red "----------------------------------------------------------------"
+        color_red "ERROR: Unsupported or unknown Linux distribution."
+        color_red "Detected: ID=" "$OS_ID" "ID_LIKE=" "${OS_LIKE:-empty}"
+        color_red "----------------------------------------------------------------"
+        exit 1
+    fi
+
+    pause_if_debug
+
+    #------------------------------------------
+    # Desktop Environment Detection / Selection
+    #------------------------------------------
+    echo
+    color_yellow "----------------------------------------------------------------"
+    color_yellow "Desktop Environment Selection"
+    color_yellow "----------------------------------------------------------------"
+    echo
+
+    DE_RAW="${XDG_CURRENT_DESKTOP:-${DESKTOP_SESSION:-}}"
+    DE=""
+
+    case "${DE_RAW,,}" in
+        *xfce*)          DE="xfce" ;;
+        *plasma*|*kde*)  DE="plasma" ;;
+        *gnome*)         DE="gnome" ;;
+        ""|none)         DE="" ;;
+    esac
+
+    if [[ -n "$DE" ]]; then
+        echo
+        color_cyan "----------------------------------------------------------------"
+        color_cyan "Detected Desktop Environment:" "$DE" "${DE_RAW:-unknown}"
+        color_cyan "----------------------------------------------------------------"
+    else
+        echo
+        color_gray "No Desktop Environment detected. Select one to install:"
+        echo
+        while true; do
+            echo "  1) XFCE"
+            echo "  2) Plasma"
+            echo "  3) GNOME"
+            echo "  x) None (default)"
+            if ! read -t 15 -rp "Enter choice [1/2/3/x] (default: x): " choice; then
+                choice="x"
+            fi
+            
+            case "${choice,,}" in
+                1) DE="xfce"; break ;;
+                2) DE="plasma"; break ;;
+                3) DE="gnome"; break ;;
+                x|"") DE="none"; break ;;
+                *) echo "Invalid option. Please enter 1, 2, 3, or x." ;;
+            esac
+        done
+        echo
+        color_cyan "----------------------------------------------------------------"
+        color_cyan "Selected Desktop Environment:" "$DE"
+        color_cyan "----------------------------------------------------------------"
+    fi
+
+    pause_if_debug
+
+    #------------------------------------------
+    # Tiling Window Manager Selection
+    #------------------------------------------
+    echo
+    color_yellow "----------------------------------------------------------------"
+    color_yellow "Tiling WM Selection"
+    color_yellow "----------------------------------------------------------------"
+    echo
+
     while true; do
-        echo "  1) XFCE"
-        echo "  2) Plasma"
-        echo "  3) GNOME"
+        echo
+        color_gray "Select a tiling window manager:"
+        echo
+        echo "  1) CHADWM"
+        echo "  2) Hyprland"
+        echo "  3) Niri"
         echo "  x) None (default)"
         if ! read -t 15 -rp "Enter choice [1/2/3/x] (default: x): " choice; then
             choice="x"
         fi
-        
+
         case "${choice,,}" in
-            1) DE="xfce"; break ;;
-            2) DE="plasma"; break ;;
-            3) DE="gnome"; break ;;
-            x|"") DE="none"; break ;;
-            *) echo "Invalid option. Please enter 1, 2, 3, or x." ;;
+            1) TWM="chadwm"; break ;;
+            2) TWM="hyprland"; break ;;
+            3) TWM="niri"; break ;;
+            x|"") TWM="none"; break ;;
+            *) echo "Invalid option. Please enter 1, 2, 3 or x." ;;
         esac
     done
+
     echo
     color_cyan "----------------------------------------------------------------"
-    color_cyan "Selected Desktop Environment:" "$DE"
+    color_cyan "Selected Tiling WM:" "$TWM"
     color_cyan "----------------------------------------------------------------"
-fi
 
-pause_if_debug
+    pause_if_debug
 
-#------------------------------------------
-# Tiling Window Manager Selection
-#------------------------------------------
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "Tiling WM Selection"
-color_yellow "----------------------------------------------------------------"
-echo
-
-while true; do
+    #------------------------------------------
+    # Installation Level Selection
+    #------------------------------------------
     echo
-    color_gray "Select a tiling window manager:"
+    color_yellow "----------------------------------------------------------------"
+    color_yellow "Installation Level Selection"
+    color_yellow "----------------------------------------------------------------"
     echo
-    echo "  1) CHADWM"
-    echo "  2) Hyprland"
-    echo "  3) Niri"
-    echo "  x) None (default)"
-    if ! read -t 15 -rp "Enter choice [1/2/3/x] (default: x): " choice; then
-        choice="x"
-    fi
 
-    case "${choice,,}" in
-        1) TWM="chadwm"; break ;;
-        2) TWM="hyprland"; break ;;
-        3) TWM="niri"; break ;;
-        x|"") TWM="none"; break ;;
-        *) echo "Invalid option. Please enter 1, 2, 3 or x." ;;
+    while true; do
+        echo
+        color_gray "Select installation level:"
+        echo
+        echo "  1) minimal"
+        echo "  2) full"
+        echo "  3) workstation"
+        echo "  4) server"
+        if ! read -t 15 -rp "Enter choice [1/2/3/4] (default: 1): " choice; then
+            choice="1"
+        fi
+
+        case "$choice" in
+            1|"") INSTALL_LEVEL="minimal"; break ;;
+            2) INSTALL_LEVEL="full"; break ;;
+            3) INSTALL_LEVEL="workstation"; break ;;
+            4) INSTALL_LEVEL="server"; break ;;
+            *) echo "Invalid option. Please enter 1, 2, 3, or 4." ;;
+        esac
+    done
+
+    echo
+    color_cyan "----------------------------------------------------------------"
+    color_cyan "Selected Installation Level:" "$INSTALL_LEVEL"
+    color_cyan "----------------------------------------------------------------"
+
+    pause_if_debug
+
+    #------------------------------------------
+    # Export selections for OS script
+    #------------------------------------------
+    export DETECTED_OS="$OS"
+    export DETECTED_DE="$DE_RAW"
+    export SELECTED_DE="$DE"
+    export SELECTED_TWM="$TWM"
+    export INSTALL_LEVEL
+
+    #------------------------------------------
+    # Determine OS script
+    #------------------------------------------
+    case "$OS" in
+        debian) OS_SCRIPT="./debian/debian.sh" ;;
+        ubuntu) OS_SCRIPT="./ubuntu/ubuntu.sh" ;;
+        arch)   OS_SCRIPT="./arch/arch.sh" ;;
+        fedora) OS_SCRIPT="./fedora/fedora.sh" ;;
+        *)
+            color_red "No OS script available for $OS"
+            exit 1
+            ;;
     esac
-done
 
-echo
-color_cyan "----------------------------------------------------------------"
-color_cyan "Selected Tiling WM:" "$TWM"
-color_cyan "----------------------------------------------------------------"
-
-pause_if_debug
-
-#------------------------------------------
-# Installation Level Selection
-#------------------------------------------
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "Installation Level Selection"
-color_yellow "----------------------------------------------------------------"
-echo
-
-while true; do
-    echo
-    color_gray "Select installation level:"
-    echo
-    echo "  1) minimal"
-    echo "  2) full"
-    echo "  3) workstation"
-    echo "  4) server"
-    if ! read -t 15 -rp "Enter choice [1/2/3/4] (default: 1): " choice; then
-        choice="1"
-    fi
-
-    case "$choice" in
-        1|"") INSTALL_LEVEL="minimal"; break ;;
-        2) INSTALL_LEVEL="full"; break ;;
-        3) INSTALL_LEVEL="workstation"; break ;;
-        4) INSTALL_LEVEL="server"; break ;;
-        *) echo "Invalid option. Please enter 1, 2, 3, or 4." ;;
-    esac
-done
-
-echo
-color_cyan "----------------------------------------------------------------"
-color_cyan "Selected Installation Level:" "$INSTALL_LEVEL"
-color_cyan "----------------------------------------------------------------"
-
-pause_if_debug
-
-#------------------------------------------
-# Export selections for OS script
-#------------------------------------------
-export DETECTED_OS="$OS"
-export DETECTED_DE="$DE_RAW"
-export SELECTED_DE="$DE"
-export SELECTED_TWM="$TWM"
-export INSTALL_LEVEL
-
-#------------------------------------------
-# Determine OS script
-#------------------------------------------
-case "$OS" in
-    debian) OS_SCRIPT="./debian/debian.sh" ;;
-    ubuntu) OS_SCRIPT="./ubuntu/ubuntu.sh" ;;
-    arch)   OS_SCRIPT="./arch/arch.sh" ;;
-    fedora) OS_SCRIPT="./fedora/fedora.sh" ;;
-    *)
-        color_red "No OS script available for $OS"
+    #------------------------------------------
+    # Preflight check & run
+    #------------------------------------------
+    if [[ ! -f "$OS_SCRIPT" ]]; then
+        color_red "ERROR: OS script not found: $OS_SCRIPT"
         exit 1
-        ;;
-esac
+    fi
 
-#------------------------------------------
-# Preflight check & run
-#------------------------------------------
-if [[ ! -f "$OS_SCRIPT" ]]; then
-    color_red "ERROR: OS script not found: $OS_SCRIPT"
-    exit 1
-fi
+    if [[ ! -x "$OS_SCRIPT" ]]; then
+        chmod +x "$OS_SCRIPT"
+    fi
 
-if [[ ! -x "$OS_SCRIPT" ]]; then
-    chmod +x "$OS_SCRIPT"
-fi
+    echo
+    color_cyan "Running OS script: $OS_SCRIPT"
+    bash "$OS_SCRIPT" || {
+        color_red "ERROR: OS script failed: $OS_SCRIPT"
+        exit 1
+    }
 
-echo
-color_cyan "Running OS script: $OS_SCRIPT"
-bash "$OS_SCRIPT" || {
-    color_red "ERROR: OS script failed: $OS_SCRIPT"
-    exit 1
-}
+    echo
+        color_yellow "----------------------------------------------------------------"
+        color_yellow "End Detection"
+        color_yellow "----------------------------------------------------------------"
 
-echo
-color_yellow "----------------------------------------------------------------"
-color_yellow "End Detection"
-color_yellow "----------------------------------------------------------------"
\ No newline at end of file
+# ==========================================
+# CLOSE THE GUARD WRAPPER AT THE VERY END OF THE FILE:
+# ==========================================
+fi
\ No newline at end of file