`prepare_offline_dependencies.sh` will generate a tarball containing:
* Files required for PIP to install Conan
* Conan download cache
The resulting tarball content depends on CMake flags passed down
to the script.
`build_package.sh` demonstrates how to use the offline dependecies
to build Audacity. The script requires the exact CMake options that were
provided to `prepare_offline_dependencies.sh`
`build_packages.sh` allows validating the build process for different
Linux distros. It uses Docker to:
* Generate the dependencies tarball.
* Execute an offline build using `build_package.sh`.
* Generate distro specific packages, offline as well.
