Brothers, the crazy thing about this is:

You can build your own AI second brain without buying some $1,000 course or attending a coding bootcamp.

Just three and a half steps:

1. Throw all your Obsidian notes, Markdown files, PDFs, and old documents into one folder.
2. Install Khoj — an open-source project with 35k stars:
`pip install khoj`, or just download the desktop version.
3. Point it to that folder. The Obsidian plugin syncs automatically. Open `localhost:42110`.

4. Choose any model you want — Claude, GPT, or local ones like Llama, Qwen, Mistral.
If you care about privacy, run everything locally.

Then it reads everything: notes you've written, PDFs you bookmarked and never reopened, ideas that seemed brilliant at the time but you totally forgot about.
It even uses semantic search to surface connections you never realized yourself.

Most people use AI as a search box.
But this thing is more like a research partner that has read all your stuff.

Damn, the real value isn't what AI can answer — it's that it finally knows what's been inside your head.