DistrictBuilder is web-based, open source software for collaborative redistricting.
Related links and web conference info:
https://www.azavea.com/blog/2017/07/31/districtbuilder-road-ahead-redistricting/
https://map.drawthelinespa.org/
Azavea – DistrictBuilder Demo Fri Jul 26, 2019 12pm – 1pm Joining info: meet.google.com/ewh-bvmf-cps
Or dial +1 413-729-2090 PIN: 175696528#