Right. But it seems weird to me that an external module is required to achieve something so trivial. This seems exactly what the dolfinx io submodule is for (that’s what the i stands for right 
). Is this still work in progress then?
Alas, if that is really the way to go;
Before posting, I went over earlier topics, and for example ran into: https://fenicsproject.discourse.group/t/i-o-from-xdmf-hdf5-files-in-dolfin-x/3122/53. But executing
docker run -ti -v $(pwd):/root/shared -w /root/shared --rm ghcr.io/fenics/dolfinx/dolfinx:v0.6.0-r1
python3 -m pip install -U pip setuptools
python3 -m pip install git+https://github.com/jorgensd/adios4dolfinx@v0.1.0
python3 -c "import adios4dolfinx"
already returns the error No module named 'adios2'. I did my best to install adios2 in my custom docker image, but that didn’t solve the error.