Otherwise the remedy that is available has to be derived from state law. So, the standards that Forida law provides for redoing elections are controlling. The only remedies that I can conceive are those made available by Florida law. The only change I think we need is that electors should be bound to vote for the canidate they represented on the ballot. This a matter for state law.
State laws control whether electors are bound.
It seems to work for everything else. The critical issue with respect to the internet is the possibility of fraud, that it hardly seems more problematic than the present system in Florida. The Electors are chosen by the ballots cast for president. There were confusing, antiquated ballots all over the country. There is no question you identify one of the most important areas for reform that will have to be addressed after this election.