Hello Daniel, and thank you for wanting to work on the descendants of Charles Darwin. Can you clarify what you mean by "redundancy" and "spending weeks copying the work"? We develop lineages on WikiTree by connecting new person profiles to the profiles of relations which already exist. So there shouldn't be any copying necessary, as you won't be creating duplicates of profiles which already exist.
Jo, coordinator for the England Project Managed Profiles team (which manages Charles Darwin)