I got adb and fastboot building from the latest android release in #guix! It was quite difficult because I chose to reimplement the build system. Soong makes too many assumptions and it was too hard for me to make it work outside a huge monolithic source directory.

Build them from this channel:

https://framagit.org/tyreunom/guix-android

Before continuing on packaging the rest of #android, I'll fix cross-building (libcxx is broken) and implement the rest of the importer.