diff --git a/onix-gui/start.sh b/onix-gui/start.sh
index 8ffc509..c4a5e40 100755
--- a/onix-gui/start.sh
+++ b/onix-gui/start.sh
@@ -1,38 +1,35 @@
 #!/bin/bash
 
-# Installing dependencies
-
-sudo apt-get update
-sudo apt-get install ca-certificates curl
-
-sudo install -m 0755 -d /etc/apt/keyrings
-sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
-sudo chmod a+r /etc/apt/keyrings/docker.asc
+# Function to kill previous processes if they are running
+kill_previous_processes() {
+  echo "Checking for running processes on port $PORT..."
+  lsof -i :$PORT | grep LISTEN | awk '{print $2}' | xargs -r kill -9
+  echo "Checking for running tunnel services..."
+  pkill -f "lt --port $PORT"
+}
 
-# Add the repository to Apt sources:
-echo \
-"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
-$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
-sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+# Installing dependencies
 
-sudo apt-get update
-sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+# Execute the package_manager.sh script to handle Docker installation
+source "../install/scripts/package_manager.sh"
 
-sudo curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
-sudo chmod +x /usr/local/bin/docker-compose
+# Run the package_manager.sh script without passing any arguments
+# The script will handle the installation of required packages
+# including Docker and Docker Compose as defined within it.
+# No need to call install_package function explicitly.
 
 echo "installing node"
 curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash &&
-source ~/.bashrc &&
-export NVM_DIR="$HOME/.nvm"
-[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
+  source ~/.bashrc &&
+  export NVM_DIR="$HOME/.nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"                   # This loads nvm
 [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion
 nvm install 20 &&
-npm i -g localtunnel &&
+  npm i -g localtunnel &&
 
-# Add user to the docker group and apply permissions
-sudo groupadd docker & 
-sudo usermod -aG docker $USER & 
+  # Add user to the docker group and apply permissions
+  sudo groupadd docker &
+sudo usermod -aG docker $USER &
 newgrp docker &
 
 # Set script variables
@@ -40,16 +37,19 @@ PROJECT_DIR="GUI"
 PORT=3005
 TUNNEL_SERVICE="lt"
 
+# Kill previous processes if they are running
+kill_previous_processes
+
 # Change to the project directory
 cd "$PROJECT_DIR" || exit
 nvm use 20 &&
-npm i &&
+  npm i &&
 
-# Build and start the Next.js app
-echo "installing Dependencies"
+  # Build and start the Next.js app
+  echo "installing Dependencies"
 echo "Building and starting Next.js app..."
 npx next build &&
-echo "Builing Web App = True"
+  echo "Builing Web App = True"
 sleep 3
 npx next start -p "$PORT" &
 
@@ -58,7 +58,7 @@ npx next start -p "$PORT" &
 # Install the tunnel service if not installed
 sleep 3
 echo "Exposing local port $PORT using $TUNNEL_SERVICE..."
-lt --port "$PORT" > /tmp/lt.log 2>&1 &
+lt --port "$PORT" >/tmp/lt.log 2>&1 &
 
 # Wait for the tunnel service to start
 echo "Waiting for tunnel service to start..."
@@ -71,8 +71,8 @@ TUNNEL_URL=$(grep -o 'https://[^[:blank:]]*' /tmp/lt.log)
 echo "Getting Tunnel Password"
 TUNNEL_PASSWORD=$(curl https://loca.lt/mytunnelpassword) &&
 
-# Print the tunnel URL and password
-echo "---------------------------------------"
+  # Print the tunnel URL and password
+  echo "---------------------------------------"
 echo "Next.js app is running locally on port $PORT"
 echo "Tunnel Service URL: $TUNNEL_URL"
 echo "Tunnel Password: $TUNNEL_PASSWORD"