Update install docs and script for Ubuntu (apt/ufw instead of dnf/firewall-cmd)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -40,19 +40,21 @@ tail -f .vite.log   # Vite dev server
 
 ---
 
-## Production Install (Rocky Linux / systemd)
+## Production Install (Ubuntu / systemd)
 
 Installs the app as a persistent systemd service under `/opt/study-app`.
 
 ```bash
+# Install Node.js 20 (if not already installed)
+curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
+sudo apt-get install -y nodejs
+
+# Install build tools (required for better-sqlite3)
+sudo apt-get install -y build-essential python3
+
+# Clone and install
 git clone https://github.com/nmemmert/study-bible-project.git
 cd study-bible-project
-
-# Install build tools (first time only)
-sudo dnf groupinstall -y "Development Tools"
-sudo dnf install -y python3
-
-# Install and enable the service
 sudo bash deploy/install.sh
 ```
 
@@ -70,8 +72,8 @@ systemctl restart study-app         # Restart after an update
 
 **Open the firewall port (if needed):**
 ```bash
-sudo firewall-cmd --add-port=3001/tcp --permanent
-sudo firewall-cmd --reload
+sudo ufw allow 3001/tcp
+sudo ufw reload
 ```
 
 The app listens on **port 3001** by default. Set the `PORT` environment variable in the systemd unit to change it.

deploy/install.sh

@@ -22,9 +22,9 @@ echo "=== Installing Bible Study App to $INSTALL_DIR ==="
 # ── Node check ────────────────────────────────────────────────────────────────
 if ! command -v node >/dev/null 2>&1; then
   echo "ERROR: Node.js is not installed."
-  echo "On Rocky Linux, install via NodeSource, e.g.:"
-  echo "  curl -fsSL https://rpm.nodesource.com/setup_20.x | sudo bash -"
-  echo "  sudo dnf install -y nodejs"
+  echo "On Ubuntu, install via NodeSource, e.g.:"
+  echo "  curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -"
+  echo "  sudo apt-get install -y nodejs"
   exit 1
 fi
 NODE_VERSION=$(node -v | sed 's/v//' | cut -d. -f1)
@@ -36,9 +36,8 @@ echo "Node.js $(node -v) found."
 
 # build tools needed for better-sqlite3 native module
 if ! command -v gcc >/dev/null 2>&1 || ! command -v make >/dev/null 2>&1; then
-  echo "Installing build tools (Development Tools group + python3)..."
-  dnf groupinstall -y "Development Tools"
-  dnf install -y python3
+  echo "Installing build tools (build-essential + python3)..."
+  apt-get install -y build-essential python3
 fi
 
 # ── Create service user ─────────────────────────────────────────────────────