You’re right, Wuzzy the app is quite accurate and complete.
Updating the Wiki manually is a huge task and the information changes a lot while the game is in development.
But the wiki is still needed, to add custom information about the items.
I’m going to try adding a feature to the item browser, where each item can create a “wiki link” pointing to the official wiki.
For example the Sewing kit would lead to this page which has information the item browser just won’t have.