Single-page dashboard built directly in HTML, CSS, and vanilla JavaScript. It also uses Google Identity Services for sign-in, Leaflet for map pins, and a small service worker + web manifest so it behaves like an installable PWA.

The backend is a small Python service powered by Flask with Flask-CORS. Production serving is set up for Gunicorn, and the scheduler work is handled inside Python instead of splitting into separate services.

SQLite stores users, per-account settings, tracked products, and check history. APScheduler runs recurring stock checks in the background for each signed-in account.

Product resolution and stock lookup use requests, BeautifulSoup, and lxml. When hits are found, the app pushes alerts through Discord webhooks.

Rajdhani and Space Mono are loaded through Google Fonts. Sign-in uses Google Identity Services, and backend token verification uses google-auth.

Interactive maps are powered by Leaflet. Map tiles are credited to OpenStreetMap contributors and CARTO, while location search uses Nominatim.

Local SVG interface icons such as add_location.svg, location.svg, map.svg, list.svg, dark.svg, light.svg, and road.svg use Google Material Symbols icon paths. Project-local raster action icons used in buttons and utility states are attributed here as Flaticon exports where applicable.

The service stack includes Flask, Flask-CORS, APScheduler, requests, BeautifulSoup4, lxml, python-dotenv, websocket-client, Gunicorn, and SQLite. Alert delivery uses Discord webhooks.