Re: Alas for national differences...
> Go nuts with electronic voting machines, as long as we have a printed paper receipt at the end of the process, and we audit the papertrail, not just the 'infallible' electronic machines.
In Maine we get pre-printed paper and a clean pen. And stand-up desks with baffles so we can't cheat from the other guy's paper. (Yes one sit-down for the wheelchairs.) We make ink-marks in little ovals to note our choices. Then there is a special scanner. Probably adapted from standardized test technology. Like cmdrklarg's post about of how Minnesota does it.
I stick the paper in, it sucks it up, and lights "OK". We are told the paper goes into a locked metal box, the literal paper trail. Meantime some digi-bits are put on digital storage devices, locked, collected by bonded messengers or State Police, and taken to Augusta for first-count.
NONE of this is on-line! It has been in place before that was an on-line in most of Maine. It is sometimes operated by elderly dears who don't do on-line.
Yes, this could be cheated, except-- here in rural Maine I am only seven degrees away from anybody in town, including the election watchers and workers. They may be my mechanic's daughter, or my supermarket clerk, or the agent I sold my last house through. I know Janet's family votes her way early and often, but so does the Inn's family, and it balances. (Kin counts for more than party.)
The first-count may be informally reported in several days. The official certification will be a month or more, and then maybe re-counts.
> In the US, ...there are multiple different positions on a single ballot paper....
I just voted and still have my cheat-sheet in my pocket. Yes, usually I can remember my preferences but this was slightly busy.
State Governor (3 people running, never heard of one of them)
US Representative (rank choice, 3 runners, an R and a D and an I)
State Senator
State Representative
County Judge of Probate (unopposed)
County Registrar of Deeds (unopposed)
County Sheriff (unopposed)
County Treasurer (unopposed)
District Attorney
9 openings for 16 people is rather a lot, but not unusual. The large number of unopposed is a little odd; especially Sheriff (county law enforcement top bureaucrat) which has a different sort of power and the incumbent has stirred controversy, for action and for inaction.