NEST as conda-feedstock

[kreczko]

Since I've been recently spending some time with conda, I was wondering if there is appetite for a conda-feedstock for NEST.

The goal

The ability to run

conda install nest

and get NEST + nestpy.

Since both Geant4 and ROOT are already in conda, one could even think of adding them at build time for the additional targets, but optional for run-time.

The process

If there is appetite I can get started on https://conda-forge.org/docs/maintainer/adding_pkgs/#the-staging-process - which might take some time.
Given the few dependencies NEST requires, it should not be too complicated.
I would circulate the recipe in this issue for feedback.

Once created and approved, it should be low maintenance, e.g. updating dependency versions from time to time.
That said, I would appreciate if other people would join as recipe-maintainers to avoid a single point of failure.