Okay, I can help you set up a basic live flight map using Leaflet.js and the OpenSky Network API. This will display real-time flight positions on a map.

Keep in mind that this will run in your browser and fetch data periodically. It relies on the OpenSky Network's free tier, which has usage limitations. It won't be a full 24/7 persistent service like Flightradar24 itself, as that requires dedicated server infrastructure.

This sets up the map. It will fetch flight data from OpenSky Network every 30 seconds and update the aircraft positions. You can pan and zoom the map as usual. Click on a plane icon to see basic flight details.