This application can decrypt backups produced by Wire for iOS using the correct password.
After applying, you get a zip-compressed file containing several other files. The most interesting one are sqlite-databases.
For compiling you need the meson build system, ninja, a good c++-compiler and libsodium installed with its headers.
In the source directory run:
meson build && cd build && ninjaYou get the executable named "decrypt".
On MacOS the default clang compiler does not support std::any, which was introduced in c++17. At least the headers cannot be found. As a workaround you can install gcc (e.g. with homebrew) and run
CXX=g++-8 meson build && cd build && ninja