Here's a patch series adding sdrangel and its dependencies. Please tell me if you see things to fix before I push it. Also, the dsdcc library doesn't have all its features as I didn't compile it with mbelib support because of the following warning in the "Readme.md" file: --8<---------------cut here---------------start------------->8--- While DSDcc is intended to be patent-free, `mbelib` that it uses describes functions that may be covered by one or more U.S. patents owned by DVSI Inc. The source code itself should not be infringing as it merely describes possible methods of implementation. Compiling or using `mbelib` may infringe on patents rights in your jurisdiction and/or require licensing. It is unknown if DVSI will sell licenses for software that uses `mbelib`. --8<---------------cut here---------------end--------------->8--- Even if mbelib is free software, I guess the U.S. patent on the AMBE standard [1] prevents it from being included in Guix. What do you think? [1] https://en.wikipedia.org/wiki/Multi-Band_Excitation