Obsidian

obsidian is the note-taking and markdown-vault tool used in Brevvie Python + AI — Section 13: Build Your Own LLM Wiki (Karpathy / Obsidian). The lesson treats it as the IDE for a personal wiki: a local folder of markdown files with links, graph view, and optional plugins.

Role in the source

• opens the vault as a workspace
• visualizes the wiki as linked notes
• works naturally with git because the files are plain markdown
• supports capture workflows like Web Clipper and plugins like Dataview