* Tensorflow the hotspot is certainly valuable to package, but
it is somewhat difficult. A Debian developer Paul Liu tried
to work on it (incl. bazel) but things seem to be not that easy.
Apart from the bazel build, Tensorflow also has a CMake build.
However that CMake build files need an amount of patches
to avoid violating the policy. Tensorboard is a noticeable
tool, which is also very valuable to package. I'm now a fan
of Pytorch and I currently have no plan to use tensorflow
in my research work, so I don't want to touch it...