PriceBuddy is a self-hosted price tracking application built with Laravel and Filament. It monitors product prices across multiple retailers, sends notifications for price changes and stock availability, and provides insights like deal scores and seasonality analysis. The system features a web interface, API, and CLI for interaction, with background jobs handling periodic price checks. AI-assisted scraping is available for difficult sites. The architecture follows Laravel conventions with Eloquent ORM, event-driven notifications, and a modular service layer. Docker deployment simplifies setup with separate containers for app, database, and scraper services.