The most valuable AI system you're not running yet: an AI second brain. The concept goes back to Karpathy's knowledge wiki earlier this year, and it's still one of the highest-leverage workflows in AI. Connect your Hermes agent, and it becomes 10x more powerful. Here's how to build it (from scratch): Step 1. Download Obsidian Head to obsidian.md and download the desktop app. Once downloaded, go ahead and create a new Obsidian vault. Vaults are just where notes/text are stored locally. Start dumping everything in here: - Personal goals - Meetings - AI context/preferences The more you put in, the more powerful your second-brain becomes. Step 2. Connect Hermes to your Obsidian vault If you don't have Hermes yet, download the desktop app here: [ Then, paste this prompt: "I want you to connect to my new Obsidian vault and act as my second-brain personal assistant - do everything necessary to set up that connection now." This gives Hermes direct access to everything inside your notes vault. Step 3. Let it self-evolve Every time you add a new note, Hermes will automatically ingest it. Prompt Hermes: "Every day, scan my second brain database. Every time I add a new note, use it to create reusable skills and workflows." Pro tip: Once Obsidian is connected to your agent, you can just prompt it directly to add notes/context/data. This works really well if you're prompting Hermes on the go from Telegram/mobile. Save this and build your second brain system now.