The Open Source Geospatial Foundation (OSGeo) has a long tradition of organizing code sprints for developers of Open Source GIS software. (https://wiki.osgeo.org/wiki/Category:Code_Sprints).
An international community/code sprint for OSGeo will take place Nov 17-19, 2020.
The sprint is going to be a 3 day event around time zones; participating projects are free to select their working hours and log them into the wiki so others can join at the appropriate time.
We would now ask projects to please register on our wiki page https://wiki.osgeo.org/wiki/OSGeo_Virtual_Community_Sprint_2020