To open-source fans, the lure of open-source voting systems is surely strong. So
a talk at 2019
Open Source Summit North America on a project for open-source voting in
San Francisco sounded promising; it is a city with lots of technical
know-how among its inhabitants. While progress has definitely been
made—though at an almost glacially slow speed—there is no likelihood that
the city will be voting using open-source software in the near future. The talk by
Tony Wasserman was certainly interesting, however, and provided a look at
the intricacies of elections and voting that make it clear the problem is
not as easy as it might at first appear.

Source: LWN.net – [$] Open-source voting for San Francisco