Hi Kotetsu 
It’s great to see you’ve got involved with Fixit Cafe and to hear that you folks are still running events!
If you’d like to publicise the event on the 19th (and any future events), you’re more than welcome to set up as a group here on Restarters. This would let you add official events in the system, which get shared on Restart’s main site and our newsletter. By setting up a group, the system will also notify people who use this site and are based nearby, so it can be a good way to find new volunteers.
You can see how to do that here:
All the best with the event on the 19th!