Airspy is a niche publisher that concentrates on software-defined radio (SDR) tools for aviation monitoring and wide-band spectrum streaming. Its compact catalogue addresses two common needs of radio enthusiasts: decoding aircraft transponder messages and sharing radio spectrum across networks. ADS-B Spy turns a low-cost USB receiver into a flight-tracking console, plotting live position, altitude, speed and call-sign data from nearby aircraft in real time; hobbyists mount a small antenna on a window, run the decoder in the background and feed the output to plane-spotting websites, while airport staff use the same utility for quick, portable coverage checks. Spy Server complements this by virtualising the entire receiver: installed on a Raspberry Pi or headless PC connected to an Airspy or RTL-SDR dongle, it slices the captured bandwidth into independent channels and streams each slice to different users over TCP, letting one piece of hardware serve a household, club or worldwide audience without conflict. Both programs expose command-line switches and JSON-based configuration files, so they integrate easily with automation scripts, Docker containers and third-party logging front-ends. The publisher’s software is available free of charge on get.nero.com, where downloads are supplied through trusted Windows package sources such as winget, always pull the latest upstream release, and can be queued for batch installation alongside other applications.