2 thoughts here:
1) This is actually why I was going back and forth on offering a trial version, and decided to use a form so that I can qualify employers who legitimately need this vs candidates just trying to game the system
2) It might not actually matter if candidates get preliminary access to Litebulb interview code bases. Our interviews aren't brainteasers that have a specific optimal solution, they're just regular feature requests, ie build a CRUD API for this new resource model, so it almost doesn't matter how long you have. From what we've seen with submissions so far, having extra time doesn't necessarily make your code quality better. Potential idea: open source all Litebulb interview codebases?