I need a small, self-hosted webpage that lets me paste an Amazon product URL, stores it, then checks the item’s price on a schedule I can set (hourly, daily, etc.). Each check should update a simple history table so I can see the current price, the lowest recorded price, and a basic line graph of price over time. When the price drops to a threshold I define, the system must trigger an alert—email is fine for now, but if you have prior experience with Telegram, Pushbullet, or similar channels, let me know because I may add them next. Core expectations • Accurate Amazon price capture that survives page layout changes, throttling, and captchas—use the Product Advertising API, reliable scraping libraries, or a hybrid approach that you can justify. • Clean, minimal frontend: list of tracked items, an “add URL” form, editable threshold field, and a small chart (Chart.js, D3, or your preferred lightweight library). • Backend script or micro-service that handles scheduling and data storage (SQLite or any other zero-maintenance option is ideal). • Clear install/readme so I can deploy on a basic VPS running Linux. Acceptance criteria 1. I add an Amazon URL and threshold; the product appears in the list within seconds. 2. The system runs automatically on the chosen interval and updates price history. 3. An alert email reaches me the first time the price hits or goes below the threshold. 4. History graph and lowest-price figure update correctly. Please highlight your direct experience building price trackers, web scrapers, or Amazon API integrations. If you have demos, repositories, or live examples, include them—the more relevant, the better. We may extend to eBay or AliExpress later, but for this phase Amazon coverage is all I require.