There are 3 repositories under rtl-sdr-dongle topic.
Open Source ADS-B aircraft position tracker on the 1090 MHz (ES) and 978 MHz (UAT) bands for Android devices
this is example of cloning my garage keys with Arduino Digispark and FS1000A transmitter. The keys sequences were recorded first using Universal Radio Hacker tool
A python3 tool to take a 360 degree survey of the RF spectrum (hamlib + rotctld + RTL-SDR/HackRF)
Weather monitoring using Grafana, influxDB and rtl_433
Modified version of rtl-sdr driver which support rtl_sdr and rtl_tcp direct sampling from I/Q branch.
A simple method to stream the audio out from GNU Radio into VLC media player
FM Radio Server & Client
adsb-radar - live aircraft plotting via rtl1090 mode-s data
Singled ended to differential (BALUN) amplifier for direct sampling with RTL-SDR dongle