OpenHPSRDR and its supporting organization TAPR (Tucson Amateur Packet Radio) form a volunteer-driven ecosystem that has spent two decades refining open-source software-defined radio solutions for serious amateur and experimental operators. Their catalogue is intentionally focused: PowerSDR delivers a mature, continuously updated graphical console for the High-Performance Software-Defined Radio (HPSDR) hardware family, turning home-built or commercial Mercury, Penelope and Angelia boards into a full-featured HF/VHF transceiver with waterfall, DSP filtering, digital-mode modems and remote-server capability. Thetis carries that concept forward with a ground-up rewrite that adds higher-resolution spectral displays, more aggressive noise-reduction algorithms, multiple receive slices, advanced diversity reception and native support for the latest generation of Orion MKII and Anan-7000/8000 radios. Both applications target contesters, DX hunters, researchers and educators who want low-latency, laboratory-grade performance without the lock-in of proprietary firmware. Typical use cases include field-day operation, university radio-telescope experiments, emergency-service mesh networks and high-bandwidth microwave DATV. Because the code base is open, users can compile custom variants that embed specialized digital voice codecs, integrate with WSJT-X or feed raw I/Q streams into MATLAB for signal analysis. OpenHPSDR/TAPR software is offered for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always pull the newest release, and can be installed individually or in unattended batch sets.