Would be nice to be able to solve the lock file and build the environment in one builder stage and then just copy everything into another base image in a second stage.
c.f. conda/conda-lock#266 (comment)
Not sure if conda-pack is needed here.
The alternative is just to do it single stage and then figure out some way to target the base environment with conda-lock install but then that seems to run into
CondaValueError: The target prefix is the base prefix. Aborting.