And before that, I believe they used the xxx.sportresult.com system, which every single multi-sport event ever should use (or the MicroPlus system like the Universiade, that one worked like a charm as well)
To be fair though, if FIS and IBU have the live timing running in their usual way, that is absolutely a million times better than any multi-sports event can ever have, few things around multi-sport events are more annoying than spending the first days getting used to the results system when the IF has a perfectly fine one already