This was something we experimented with at DC Paris: I did a
workshop-type session like this on the Views API (4 hours, free).
Attendance was overwhelming, meaning there were really too many people
trying to attend, and I did not have enough time to cover the full
expected material, because in such situations the number of questions
increases with the number of participants, unlike traditional
If such a session is accepted, you will likely want to either limit
attendance to fairly low numbers or be ready to cover only a small
part of what you would normally cover in the same duration if
attendance is significant.
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