Here's how I back up my self-hosted Obsidian notes to a private Git repository
Who says you can't use a Git repository to store your Obsidian knowledge base?

Ask any note-taking enthusiast about their favorite app, and the name Obsidian is bound to pop up in the conversation every now and again. In addition to its vast plugin collection, Obsidian includes a ton of tools to organize your notes and customize every aspect of the note-taking app. Plus, it’s compatible with multiple backup options, so you don’t have to worry about losing access to your precious notes.