Prepare for s28 PI meeting: May 10 2022

We've got to make slides, wrap up any ongoing work that we want to report, and coordinate with the rest of our group about what our story/goals are.

We should gather the information we need some days before May 11 (say, by May 5 latest), so there is enough time to organize it into a coherent presentation and enough time to notice missing things (e.g. graphs and diagrams) and collect them too.