One of the things I love about Obsidian is that it offers support for callback URLs. For example, you could include a link to a specific note inside of a task in Things or a link to an email message from your Daily Notes in Obsidian. In this article, I’ll show you a couple of ways you can connect things in Obsidian to other apps. Linking to a Note in Obsidian Each note in Obsidian has its own callback URL that you can use to access that note directly.