https://nlp.seas.harvard.edu/NamedTensor
https://namedtensor.github.io/
https://docs.pytorch.org/docs/stable/named_tensor.html
https://github.com/JuliaArrays/AxisArrays.jl
https://github.com/ofnote/tsalib
https://github.com/google-deepmind/tensor_annotations
https://github.com/google-deepmind/penzai
https://github.com/tensorflow/mesh/
https://github.com/facebookresearch/torchdim
https://returnn.readthedocs.io/en/latest/getting_started/dat... (that's my own development; unfortunately the doc is very much outdated on that)