diff --git a/.env.example b/.env.example
index aa58bac..bea4eab 100644
--- a/.env.example
+++ b/.env.example
@@ -1,83 +1,22 @@
-# studspider Environment Configuration
+# Brickset.com credentials - LEGO database for pricing, images, UPC codes
+BRICKSET_USERNAME = "your_brickset_username"
+BRICKSET_PASS = "your_brickset_password"
+BRICKSET_API_KEY = "your_brickset_api_key"
 
-# ============================================================================
-# Square API Configuration
-# ============================================================================
+# Square environment - "sandbox" for testing, "production" for live store
+SQUARE_ENV = "sandbox"  # or "production"
 
-# Environment: "production" or "sandbox"
-SQUARE_ENV=sandbox
+SQUARE_WEBHOOK_URL = "https://yourdomain.com/hook"
 
-# Sandbox credentials
-SANDBOX_SQUARE_APP_ID=your_sandbox_app_id
-SANDBOX_SQUARE_TOKEN=your_sandbox_access_token
+# Sandbox credentials - test environment (fake data, safe for development)
+SANDBOX_SQUARE_APP_ID = "your_sandbox_app_id"
+SANDBOX_SQUARE_TOKEN = "your_sandbox_access_token"
+SANDBOX_SQUARE_WEBHOOK_INVENTORY_ID = "your_sandbox_webhook_signature_key"
 
-# Production credentials
-PROD_SQUARE_APP_ID=your_production_app_id
-PROD_SQUARE_TOKEN=your_production_access_token
+# Production credentials - live store (real inventory and sales)
+PROD_SQUARE_APP_ID = "your_production_app_id"
+PROD_SQUARE_TOKEN = "your_production_access_token"
+PROD_SQUARE_WEBHOOK_INVENTORY_ID = "your_production_webhook_signature_key"
 
-# Square LEGO category ID (find this in Square Dashboard)
-SQUARE_LEGO_CAT_ID=your_lego_category_id
-
-# ============================================================================
-# Brickset API Configuration
-# ============================================================================
-
-BRICKSET_USERNAME=your_brickset_username
-BRICKSET_PASS=your_brickset_password
-BRICKSET_API_KEY=your_brickset_api_key
-
-# ============================================================================
-# SSL Certificate Configuration (Optional)
-# ============================================================================
-
-# NOTE: Only needed if running HTTPS directly in Python (not recommended)
-# For production, use nginx reverse proxy with Let's Encrypt instead
-# nginx handles SSL/TLS, your Python app runs HTTP internally
-
-# Path to SSL certificate in PEM format (if running HTTPS directly)
-# SSL_CERT_PATH=/path/to/cert.pem
-
-# Path to SSL private key in PEM format (if running HTTPS directly)
-# SSL_KEY_PATH=/path/to/key.pem
-
-# ============================================================================
-# Square Webhook Signature Verification
-# ============================================================================
-
-# CRITICAL: Get these from Square Developer Dashboard → Webhooks
-# 1. Go to https://developer.squareup.com/apps
-# 2. Select your application
-# 3. Click "Webhooks" section
-# 4. Create webhook subscription (Notification URL + Events)
-# 5. Copy the Signature Key that Square displays
-
-# Signature key from Square Dashboard (a string like "asdf1234")
-SQUARE_WEBHOOK_SIGNATURE_KEY=your_webhook_signature_key_from_square
-
-# Your webhook notification URL (must match EXACTLY what's in Square Dashboard)
-# This should be your public HTTPS URL (through nginx)
-# Example: https://yourdomain.com/hook
-SQUARE_WEBHOOK_URL=https://yourdomain.com/hook
-
-# ============================================================================
-# Server Configuration (Optional)
-# ============================================================================
-
-# Default host and port (can override with command line args)
-# SERVER_HOST=0.0.0.0
-# SERVER_PORT=7432
-# SERVER_HOOK_PORT=8080
-
-# ============================================================================
-# Usage Examples
-# ============================================================================
-
-# Basic HTTP server (recommended with nginx):
-#   python src/test_server.py
-#
-# With SSL from .env:
-#   Set SSL_CERT_PATH and SSL_KEY_PATH above, then:
-#   python src/test_server.py --hook-port 8443 --hook-ssl-only
-#
-# Override SSL from command line:
-#   python src/test_server.py --ssl-cert /custom/cert.pem --ssl-key /custom/key.pem
+# Category ID for LEGO items in Square catalog (find in Dashboard → Items → Categories)
+SQUARE_LEGO_CAT_ID = "your_lego_category_id"
\ No newline at end of file