Drew Neil is running one of his excellent Core Vim masterclasses while he's in Stockholm:
“Vim can shred text at the speed of thought, but learning how can take years. Or you can learn everything that matters in 4 hours by taking this Core Vim Masterclass. This course is ideal if you make heavy use of Vim and want to level up. The techniques you learn will boost your productivity, whether you use Vim for editing server config files, source code, or prose.”
Tickets are on sale now, and there's an early bird discount if you book soon: https://tito.io/studio-nelstrom/core-vim-class-in-stockholm-1
Please don't RSVP on Meetup for this event, you need to buy a ticket through tito.io if you're going to attend.