diff --git a/README.md b/README.md
index 94eaca1..495c983 100644
--- a/README.md
+++ b/README.md
@@ -50,36 +50,37 @@ When running as a background daemon, TimeTurner provides a web interface for mon
 
 ## 🚀 Installation
 
-The `setup.sh` script is provided to compile and install the TimeTurner application and its systemd service on a Debian-based system like Raspberry Pi OS.
+The `setup.sh` script compiles and installs the TimeTurner application. You can run it by cloning the repository with `git` or by using the `curl` command below for a git-free installation.
 
 ### Prerequisites
 
-- **Rust and Cargo**: The script requires the Rust programming language toolchain. If you don't have it, install it from [rustup.rs](https://rustup.rs/).
+- **Internet Connection**: To download dependencies.
+- **Curl and Unzip**: The script requires `curl` to download files and `unzip` for the git-free method. The setup script will attempt to install these if they are missing.
 
-### Running the Installer
+### Running the Installer (Recommended)
 
-1.  First, clone the repository:
-    ```bash
-    git clone https://github.com/cjfranko/NTP-Timeturner.git
-    cd NTP-Timeturner
-    ```
-2.  Make the script executable and run it. The script will use `sudo` for commands that require root privileges, so it may ask for your password.
-    ```bash
-    chmod +x setup.sh
-    ./setup.sh
-    ```
+This command downloads the latest version, unpacks it, and runs the setup script. Paste it into your Raspberry Pi terminal:
+
+```bash
+curl -L https://github.com/cjfranko/NTP-Timeturner/archive/refs/heads/main.zip -o NTP-Timeturner.zip && \
+unzip NTP-Timeturner.zip && \
+cd NTP-Timeturner-main && \
+chmod +x setup.sh && \
+./setup.sh
+```
 
 ### What the Script Does
 
 The installation script automates the following steps:
 
-1.  **Compiles the Binary**: Runs `cargo build --release` to create an optimised executable.
-2.  **Creates Directories**: Creates `/opt/timeturner` to store the application files.
-3.  **Installs Files**: 
+1.  **Installs Dependencies**: Installs `git`, `curl`, `unzip`, and necessary build tools.
+2.  **Compiles the Binary**: Runs `cargo build --release` to create an optimised executable.
+3.  **Creates Directories**: Creates `/opt/timeturner` to store the application files.
+4.  **Installs Files**: 
     - The compiled binary is copied to `/opt/timeturner/timeturner`.
     - The web interface assets from the `static/` directory are copied to `/opt/timeturner/static`.
     - A symbolic link is created from `/usr/local/bin/timeturner` to the binary, allowing it to be run from any location.
-4.  **Sets up Systemd Service**: 
+5.  **Sets up Systemd Service**: 
     - Copies the `timeturner.service` file to `/etc/systemd/system/`.
     - Enables the service to start automatically on system boot.
 
diff --git a/config.yml b/config.yml
index bf892f4..bc552ee 100644
--- a/config.yml
+++ b/config.yml
@@ -12,8 +12,8 @@ defaultNudgeMs: 2
 # Time-turning offsets. All values are added to the incoming LTC time.
 # These can be positive or negative.
 timeturnerOffset:
-  hours: 1
-  minutes: 2
-  seconds: 3
-  frames: 4
-  milliseconds: 5
+  hours: 0
+  minutes: 0
+  seconds: 0
+  frames: 0
+  milliseconds: 0
diff --git a/setup.sh b/setup.sh
index eb1be25..3dffd84 100644
--- a/setup.sh
+++ b/setup.sh
@@ -21,7 +21,8 @@ echo "Detected package manager: $PKG_MANAGER"
 # --- Update System Packages ---
 echo "Updating system packages..."
 if [ "$PKG_MANAGER" == "apt" ]; then
-    sudo apt update && sudo apt upgrade -y
+    sudo apt update
+    sudo DEBIAN_FRONTEND=noninteractive apt upgrade -y -o Dpkg::Options::="--force-confold"
 elif [ "$PKG_MANAGER" == "dnf" ]; then
     sudo dnf upgrade -y
 elif [ "$PKG_MANAGER" == "pacman" ]; then
@@ -48,14 +49,29 @@ fi
 echo "Installing common build dependencies..."
 if [ "$PKG_MANAGER" == "apt" ]; then
     sudo apt update
-    sudo apt install -y build-essential libudev-dev pkg-config curl
+    sudo apt install -y build-essential libudev-dev pkg-config curl wget
 elif [ "$PKG_MANAGER" == "dnf" ]; then
-    sudo dnf install -y gcc make perl-devel libudev-devel pkg-config curl
+    sudo dnf install -y gcc make perl-devel libudev-devel pkg-config curl wget
 elif [ "$PKG_MANAGER" == "pacman" ]; then
     sudo pacman -Sy --noconfirm base-devel libudev pkg-config curl
 fi
 echo "Common build dependencies installed."
 
+# --- Install Python dependencies for testing ---
+echo "🐍 Installing Python dependencies for test scripts..."
+if [ "$PKG_MANAGER" == "apt" ]; then
+    # python3-serial is the name for pyserial in apt
+    sudo apt install -y python3 python3-pip python3-serial
+elif [ "$PKG_MANAGER" == "dnf" ]; then
+    # python3-pyserial is the name for pyserial in dnf
+    sudo dnf install -y python3 python3-pip python3-pyserial
+elif [ "$PKG_MANAGER" == "pacman" ]; then
+    # python-pyserial is the name for pyserial in pacman
+    sudo pacman -Sy --noconfirm python python-pip python-pyserial
+fi
+# sudo pip3 install pyserial # This is replaced by the native package manager installs above
+echo "✅ Python dependencies installed."
+
 # --- Apply custom splash screen ---
 if [[ "$(uname)" == "Linux" ]]; then
     echo "🖼️  Applying custom splash screen..."
@@ -100,10 +116,10 @@ echo "Removing NTPD (if installed) and installing Chrony, NMTUI, Adjtimex..."
 if [ "$PKG_MANAGER" == "apt" ]; then
     sudo apt update
     sudo apt remove -y ntp || true # Remove ntp if it exists, ignore if not
-    sudo apt install -y chrony nmtui adjtimex
+    sudo apt install -y chrony network-manager adjtimex
     sudo systemctl enable chrony --now
 elif [ "$PKG_MANAGER" == "dnf" ]; then
-    sudo dnf remove -y ntp || true
+    sudo dnf remove -y ntp
     sudo dnf install -y chrony NetworkManager-tui adjtimex
     sudo systemctl enable chronyd --now
 elif [ "$PKG_MANAGER" == "pacman" ]; then
@@ -116,29 +132,142 @@ fi
 
 echo "NTPD removed (if present). Chrony, NMTUI, and Adjtimex installed and configured."
 
+# --- Configure Chrony to act as a local NTP server ---
+echo "⚙️  Configuring Chrony to serve local time..."
+# The path to chrony.conf can vary
+if [ -f /etc/chrony/chrony.conf ]; then
+    CHRONY_CONF="/etc/chrony/chrony.conf"
+elif [ -f /etc/chrony.conf ]; then
+    CHRONY_CONF="/etc/chrony.conf"
+else
+    CHRONY_CONF=""
+fi
+
+if [ -n "$CHRONY_CONF" ]; then
+    # Comment out any existing pool, server, or sourcedir lines to prevent syncing with external sources
+    echo "Disabling external NTP sources..."
+    sudo sed -i -E 's/^(pool|server|sourcedir)/#&/' "$CHRONY_CONF"
+
+    # Add settings to the top of the file to serve local clock
+    # Using a temp file to prepend is safer than multiple sed calls
+    TEMP_CONF=$(mktemp)
+    cat <<EOF > "$TEMP_CONF"
+# Serve the system clock as a reference at stratum 1
+server 127.127.1.0
+allow 127.0.0.0/8
+local stratum 1
+
+EOF
+    # Append the rest of the original config file after our new lines
+    cat "$CHRONY_CONF" >> "$TEMP_CONF"
+    sudo mv "$TEMP_CONF" "$CHRONY_CONF"
+
+
+    # Add settings to the bottom of the file to allow LAN clients
+    echo "Allowing LAN clients..."
+    sudo tee -a "$CHRONY_CONF" > /dev/null <<EOF
+
+# Allow LAN clients to connect
+allow 0.0.0.0/0
+EOF
+
+    # Restart chrony to apply changes (service name can be chrony or chronyd)
+    echo "Restarting Chrony service..."
+    sudo systemctl restart chrony || sudo systemctl restart chronyd
+    echo "✅ Chrony configured."
+else
+    echo "⚠️  Warning: chrony.conf not found. Skipping Chrony configuration."
+fi
+
+
 # --- Install and configure WiFi hotspot and captive portal ---
 echo "📡 Installing and configuring WiFi hotspot and captive portal..."
 
 if [ "$PKG_MANAGER" == "apt" ]; then
-    sudo apt install -y hostapd dnsmasq nodogsplash
-    sudo systemctl unmask hostapd
-    sudo systemctl enable hostapd
+    # Stop the service if it's running from a previous installation to prevent "Text file busy" error.
+    echo "Stopping existing nodogsplash service before installation..."
+    sudo systemctl stop nodogsplash || true
+
+    # We will use dnsmasq for DHCP, as the compiled nodogsplash version may not support the internal DHCP server.
+    # sudo apt-get remove --purge -y dnsmasq || true # This line is no longer needed.
+
+    # Install dependencies for hotspot and for building nodogsplash.
+    sudo apt install -y hostapd dnsmasq git libmicrohttpd-dev libjson-c-dev iptables
+    
+    # Force iptables-legacy for nodogsplash
+    echo "Setting iptables-legacy mode for nodogsplash..."
+    sudo update-alternatives --set iptables /usr/sbin/iptables-legacy
+    sudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
+
+    echo "Building and installing nodogsplash from source..."
+    # Create a temporary directory for the build
+    BUILD_DIR=$(mktemp -d)
+    git clone https://github.com/nodogsplash/nodogsplash.git "$BUILD_DIR"
+    
+    # Run the build in a subshell to isolate the directory change
+    (
+        cd "$BUILD_DIR"
+        make
+        sudo make install
+        
+        # Manually install the systemd service file as 'make install' might not do it.
+        # This makes the script more robust.
+        if [ -f "debian/nodogsplash.service" ]; then
+            echo "Manually installing systemd service file..."
+            sudo cp debian/nodogsplash.service /etc/systemd/system/nodogsplash.service
+            # Reload systemd to recognize the new service
+            sudo systemctl daemon-reload
+        else
+            echo "⚠️  Warning: nodogsplash.service file not found in source. Cannot set up as a service."
+        fi
+    )
+
+    # Clean up the build directory
+    sudo rm -rf "$BUILD_DIR"
+    echo "✅ nodogsplash installed successfully."
+
+    # Disable the standalone hostapd service to let NetworkManager manage it.
+    sudo systemctl disable hostapd
+    sudo systemctl mask hostapd
     sudo systemctl enable nodogsplash
+else
+    echo "This script is designed for Debian-based systems like Raspberry Pi OS."
+    echo "Skipping WiFi hotspot setup."
 fi
 
 # Stop services to configure
-sudo systemctl stop hostapd
-sudo systemctl stop dnsmasq
-sudo systemctl stop nodogsplash
+# Ensure services exist before trying to stop them
+sudo systemctl stop hostapd || true
+sudo systemctl stop dnsmasq || true
 
-# Configure static IP for wlan0
-echo "Configuring static IP for wlan0..."
-sudo sed -i '/^interface wlan0/d' /etc/dhcpcd.conf
-sudo tee -a /etc/dhcpcd.conf > /dev/null <<EOF
-interface wlan0
-    static ip_address=10.0.252.1/24
-    nohook wpa_supplicant
-EOF
+# Ensure NetworkManager is managing wlan0 by removing any conflicting configurations.
+# This is the critical fix for the "No suitable device" error.
+echo "Ensuring NetworkManager is managing wlan0..."
+sudo rm -f /etc/NetworkManager/conf.d/99-unmanaged-wlan0.conf
+sudo systemctl reload NetworkManager
+
+# Configure static IP for wlan0 using NetworkManager (nmcli)
+echo "Configuring static IP for wlan0 using NetworkManager..."
+
+# Define the connection name
+CON_NAME="TimeTurner-AP"
+
+# If a connection with this name already exists, delete it to ensure a clean slate.
+if nmcli c show --active | grep -q "$CON_NAME"; then
+    sudo nmcli c down "$CON_NAME" || true
+fi
+if nmcli c show | grep -q "$CON_NAME"; then
+    echo "Deleting existing '$CON_NAME' connection profile..."
+    sudo nmcli c delete "$CON_NAME" || true
+fi
+
+# Create a new connection profile for the Access Point with a static IP.
+echo "Creating new '$CON_NAME' connection profile..."
+sudo nmcli c add type wifi ifname wlan0 con-name "$CON_NAME" autoconnect yes ssid "TimeTurner"
+sudo nmcli c modify "$CON_NAME" 802-11-wireless.mode ap 802-11-wireless.band bg
+sudo nmcli c modify "$CON_NAME" 802-11-wireless-security.key-mgmt wpa-psk
+sudo nmcli c modify "$CON_NAME" 802-11-wireless-security.psk "harry-ron-hermione"
+sudo nmcli c modify "$CON_NAME" ipv4.method manual ipv4.addresses 10.0.252.1/24
 
 # Configure dnsmasq for DHCP
 echo "Configuring dnsmasq..."
@@ -148,44 +277,64 @@ dhcp-range=10.0.252.10,10.0.252.50,255.255.255.0,24h
 address=/#/10.0.252.1
 EOF
 
-# Configure hostapd
-echo "Configuring hostapd..."
-sudo tee /etc/hostapd/hostapd.conf > /dev/null <<EOF
-interface=wlan0
-driver=nl80211
-ssid=TimeTurner
-hw_mode=g
-channel=7
-wmm_enabled=0
-macaddr_acl=0
-auth_algs=1
-ignore_broadcast_ssid=0
-wpa=2
-wpa_passphrase=harry-ron-hermione
-wpa_key_mgmt=WPA-PSK
-rsn_pairwise=CCMP
-EOF
-
-sudo sed -i 's|#DAEMON_CONF=""|DAEMON_CONF="/etc/hostapd/hostapd.conf"|' /etc/default/hostapd
-
 # Configure nodogsplash for captive portal
 echo "Configuring nodogsplash..."
 sudo tee /etc/nodogsplash/nodogsplash.conf > /dev/null <<EOF
 GatewayInterface wlan0
 GatewayAddress 10.0.252.1
-MaxClients 50
-ClientIdleTimeout 3600
+MaxClients 250
+AuthIdleTimeout 480
 FirewallRuleSet preauthenticated-users {
     FirewallRule allow tcp port 80
+    FirewallRule allow tcp port 53
+    FirewallRule allow udp port 53
 }
 RedirectURL http://10.0.252.1/static/index.html
 EOF
 
-# Restart services
-sudo systemctl restart dhcpcd
-sudo systemctl restart dnsmasq
-sudo systemctl restart hostapd
-sudo systemctl restart nodogsplash
+# Restart services in the correct order and add delays to prevent race conditions
+echo "Restarting services..."
+# Bring up the new AP connection using nmcli
+sudo nmcli c up "$CON_NAME"
+
+# Wait for the interface to come up and get the IP address
+echo "Waiting for wlan0 to be configured..."
+IP_CHECK=""
+# Loop for up to 30 seconds waiting for the IP
+for i in {1..15}; do
+    # The '|| true' prevents the script from exiting if grep finds no match
+    IP_CHECK=$(ip -4 addr show wlan0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}' || true)
+    if [ "$IP_CHECK" == "10.0.252.1" ]; then
+        break
+    fi
+    echo "Still waiting for IP..."
+    sleep 2
+done
+
+# Check for the IP address before starting nodogsplash
+if [ "$IP_CHECK" == "10.0.252.1" ]; then
+    echo "✅ wlan0 configured with IP $IP_CHECK."
+    sudo systemctl restart dnsmasq
+    if command -v nodogsplash &> /dev/null; then
+        echo "Attempting to start nodogsplash service..."
+        if ! sudo systemctl restart nodogsplash; then
+            echo "❌ nodogsplash service failed to start. Displaying logs..."
+            # Give a moment for logs to be written
+            sleep 2
+            sudo journalctl -u nodogsplash.service --no-pager -n 50
+            echo ""
+            echo "To debug further, run nodogsplash in the foreground with this command:"
+            echo "  sudo /usr/bin/nodogsplash -f -d 7"
+            echo ""
+            exit 1
+        fi
+        echo "✅ nodogsplash service started successfully."
+    fi
+else
+    echo "❌ Error: wlan0 failed to get the static IP 10.0.252.1. Found: '$IP_CHECK'."
+    echo "Please check 'sudo nmcli c show \"$CON_NAME\"' and 'ip addr show wlan0'."
+    exit 1
+fi
 
 echo "✅ WiFi hotspot and captive portal configured. SSID: TimeTurner, IP: 10.0.252.1"
 echo "Clients will be redirected to http://10.0.252.1/static/index.html"
@@ -212,6 +361,7 @@ sudo ln -sf $INSTALL_DIR/timeturner $BIN_DIR/timeturner
 echo "✅ Binary and assets installed to $INSTALL_DIR, and binary linked to $BIN_DIR."
 
 # 4. Install systemd service file
+# Only needed for Linux systems (e.g., Raspberry Pi OS)
 if [[ "$(uname)" == "Linux" ]]; then
     echo "⚙️  Installing systemd service for Linux..."
     sudo cp timeturner.service /etc/systemd/system/
@@ -226,14 +376,20 @@ echo ""
 echo "--- Setup Complete ---"
 echo "The TimeTurner daemon is now installed."
 echo "The working directory is $INSTALL_DIR."
-echo "A default 'config.yml' will be created there on first run."
+# Copy default config.yml from repo if it exists
+if [ -f config.yml ]; then
+    sudo cp config.yml $INSTALL_DIR/
+    echo "Default 'config.yml' installed to $INSTALL_DIR."
+else
+    echo "⚠️  No default 'config.yml' found in repository. Please add one if needed."
+fi
 echo ""
 if [[ "$(uname)" == "Linux" ]]; then
     echo "To start the service, run:"
     echo "  sudo systemctl start timeturner.service"
     echo ""
     echo "To view live logs, run:"
-    echo "  journalctl -u timeturner.service -f"
+    echo "  journalctl -u tim_turner.service -f"
     echo ""
 fi
 echo "To run the interactive TUI instead, simply run from the project directory:"