The PP_Lite mentioned in above post provides a PlanePlotter style map on RPi. However it does NOT upload data to Planeplotter site.
To feed data from RPi to Planeplotter site, you can install another app on RPi. This app was recently provided by Bev of planeplotter. It can be downloaded from here: https://www.coaa.co.uk/ppup1090-2024-06-11.zip.
Unzipping above file provides an executable binary ppup1090 which can be run manually by command ./ppup1090. Important: you must copy file coaa.h to folder containing executable binary ppup1090. If you do not already have the file coaa.h, or it has expired due to long period of no use, then request it from following address: https://www.coaa.co.uk/rpi-request.htm
Automated Installation and running as systemd service
I have written a script which downloads this app from coaa.uk, and creates files necessary to run it by systemd, so that it starts automatically at boot and runs in the background. User can control it by following commands