Problem

Trying to get pre-release testing on 3.12 working across some repositories I work on. Matplotlib is currently a blocker for projects that have it as a mandatory dependency. With numpy 1.26.0b1 on PyPI, I suspect this is now doable?

Looking through the issue/PR list, this isn't obviously on the roadmap, so I'm hoping this is a nudge, not pestering.

Proposed solution

If it's just a matter of duplicating the following with cp312, I'm happy to submit a PR: