One could even develop a opensource verifier hardware, which has to be used for voting.
So one specificly developed piece of hardware and software, that serves as security infrastructure to vote electronically.
Discussion
The simplest solution is airgapped voting booths, that do digital signatures + counting. This is a much more secure system (still has an attack surface) as you have a dedicated hardware and you could have each person’s ID card digitally sign votes.
Real time voting results require internet access + could harm anonymity (you could narrow down which voters voted at which time, and the changes in count)
Yes. I would not say that real time results are something of importance. I just say electronic voting. Results can still be updated only after certain time.
It would only matter to me, that it is reasonably secure, a free option to choose and still deliver an anonymous vote, where only the voter can make sure what he voted.