Sure, you can prefer paper ballots, but that's just one example. The reason I bring it up is that one of the benefits of open source that is often mentioned is

Sure, you can prefer paper ballots, but that's just one example. The reason I bring it up is that one of the benefits of open source that is often mentioned is the ability to verify that it does what you think it's doing. Doesn't matter whether it's a voting machine, a self driving system or an ATM or whatever. It's still good for open source to have the capability to do this kind of proving in cases where you want it.