The Obsidian Hub is a community-run digital garden where Obsidian users share their knowledge and resources. It's basically a giant vault filled with plugin guides, workflow examples, templates, and how-to articles. If you're looking to level up your Obsidian setup, you'll find user-created content like plugin categorizations, theme design tips, and workflow showcases. The whole thing is open source, so anyone can contribute their own guides or tips.