adsbfi/adsb-fi-scripts ? reverse-engineered prompt

Build me a simple install and setup script for an ADS B receiver so it can feed adsb.fi from an existing Raspberry Pi or Linux box that already has a decoder like readsb, dump1090, or piaware.

I want it to install the feeder client, create the needed config, start the services, and not break any other feed clients already on the machine. It should also make it easy to update later without redoing the whole setup, and include a clean uninstall or disable option.

If possible, add an optional local web interface for viewing the data on the Pi at a friendly URL, and make sure I can point it at a different feeder device on my network if the receiver is not on the same machine. Please keep the setup straightforward, use the current docs if you need to, and make it easy to check whether the feed is working after install.