This is the space where the ‘chapters’ of open source design can start country/city/location based threads to do with their specific contexts.
Open Source Design historically had a Berlin Chapter and a New York City Chapter that were organised by community members in those locations. These were mostly centred around casual physical meet ups and location specific information or contexts.
There’s no barriers to starting a chapter other than your own time and energy. So if you’d like to start a chapter then start a thread 
The Open Source Design core team does maintain the ‘teams’ on our GitHub Sign in to GitHub · GitHub which is a fair assumption of who and how many people are based in a particular country and/or city.