Report on variadic generics discussions at RustWeek 2025.

This is a follow-up to last year’s Report on variadic generics discussion at RustNL . Last month, I went to RustWeek 2025 , an event gathering Rust maintainers, professional users and enthusiasts, from the same organizers as last year’s RustNL. This time the event took place in Utrecht, Netherlands, and much like last year there were two days of “Unconference”, where people discussed various…