We will have a sprint in Düsseldorf in September again, from September 19-23, 2022. I'm slightly behind in organizing, so I am already sending out the dates with this mail (I just got the confirmation for the sprint room).
As usual, the sprint will take place in the CS department of Heinrich-Heine-Universität Düsseldorf and will be fully public.
The plan is to have a number of other Python implementations and some HPy people join us. Some GraalPy people and HPy people will definitely be there but I am also talking to other implementations.
I will post a proper announcement soon!