[petsc-users] reproducibility

[Lawrence Mitchell]

> On 28 May 2021, at 16:51, Mark Adams <mfadams at lbl.gov> wrote:
> 
> It sounds like I should get one branch settled, use it, and keep that branch in the repo, and to be safe not touch it, and that should work for at least a few months. I just want it to work if the reviewer tests it :)
> 

Just bake a docker container and archive it on zenodo.org or figshare :)

Lawrence