I think it is going to take a whistleblower. Without a whistleblower this is going to be hard to get going - since we know it was designed to be undetectable
The best perhaps they can do is an audit of all counties that used the program.
I agree with your posts generally. It is going to require extensive proof, which I think they are gathering now.
They will need to keep that proof private, so the media can’t attempt to debunk it, before they present it to the various courts in order to require careful recounts. Ideally, hand recounts, that validate every vote and vote source.
The main issue they face, is that it appears this effort will be required in multiple states. Not impossible, but it will be a long slog, that tests us all. He will need the best lawyers in the country, thankfully Powell is already engaged.