docs(hackathon): make this a bit more official than a slack message

hackathons/README.md

@@ -4,7 +4,8 @@ We don't have hackathons at the moment, but monthly [Show & Tells](../showandtel
 
 ## Upcoming Hackathons
 
-12. [April 15th to 19th, Berlin, Germany](13-ber.md)
+1. [June 17th to 20th, Basel, Switzerland](rum-1-bsl.md)
+1. [August 19th to 23rd 2024, Toronto, Canada](14-yyz.md)
 
 ## Past Hackathons
 
@@ -20,6 +21,7 @@ We don't have hackathons at the moment, but monthly [Show & Tells](../showandtel
 10. [November 2022, Remote, due to travel restrictions](10-bcn.md)
 11. August 2023, New York City, NY
 12. [January 2024, Palm Springs, CA](12-psp.md)
+13. [April 15th to 19th, Berlin, Germany](13-ber.md)
 
 ## Ideas for future Hackathons
 

hackathons/rum-1-bsl.md

@@ -0,0 +1,69 @@
+# Rumathon I
+
+June 17th to 20th, Basel, Switzerland (Adobe Office)
+
+---
+
+(See the [Hackathon Archive](./README.md) for past Operations Workshops and Hackathons)
+
+### Rumathon???
+
+This is a more or less spontanous workshop to ge the team together and work on things
+that have come up, discuss ideas and generally have a good time. We are modeling this
+after the Helix Hackathons, but due to the short notice, everything will be a bit more
+bare-bones than usual. We are also meeting in the Basel office, but I'd ask you to
+keep the number of sidetracks reasonable.
+
+### Agenda
+
+> I hear this is an rumathon workshop, are you going to taste RUM all day?
+
+Trying to get as much of the virtual team together, the goal is to have high-bandwidth exchanges on the current state and next steps of RUM. We will try to keep it hands-on, so instead
+of presentations, we will rely on code settling arguments, this means we won't be hacking all the time, there will also be plenty
+of programming and coding.
+
+The main purpose of the hackathon is social: allow the team to reconnect, meet new team members for the first time, and work on
+stuff that won't fit neatly into a 45-minute Teams meeting.
+
+|      Time | Monday                                                 | Tuesday | Wednesday | Thursday | Friday  |
+| --------: | ------------------------------------------------------ | ------- | --------- | -------- | ------- |
+|   Morning | Noon: Kickoff, Introductions, Architecture             | Hacking | Hacking   | Hacking  | -       |
+| Afternoon | Hacking                                                | Hacking | Hacking   | Demos    | -       |
+|   Evening | Social                                                 | Social  | Social    | -        | -       |
+
+### Location
+
+> Where is this going to happen? Do you have a windowless conference room blocked out?
+
+In the Basel office. We don't have a room yet, but it will likely have windows.
+
+#### Travel
+
+BSL. You are either there already, or you know the drill.
+
+### Goals
+
+> What are you planning to show at the end of the week?
+
+Put down the topic and the people that would like to discuss it:
+
+The theme of this offsite is ....
+
+#### Ideas / Suggestions / Topics Collection
+
+### Attendees
+
+> Who is going to be there? Can I come?
+
+If you had your hands on RUM code in the past year, you are welcome to join us. Put your name on the list, so that planning is a bit easier
+
+2. @trieloff
+
+
+### Preparation
+
+> What can I do to prepare for the Hackathon?
+
+1. Join `#rum-explorers` on Slack
+
+### Demos