You can build an AI second brain in 15 minutes. No coding experience needed. no $1000 course [Here is how you can do it in 5 mins:] Step 1: Download Claude Desktop. Step 2: Download Obsidian Desktop. Step 3: Create a new vault and start dropping .MD files into... it. Step 4: Tell Claude Code to connect directly to your vault using Andrej Karpathy's prompt: That is it. Your entire knowledge base becomes searchable, connectable, and queryable by the most powerful AI model on earth. Every note you have ever written. Every idea you have ever captured. Every resource you have ever saved. Claude can now read all of it, find connections you missed, and surface insights from your own thinking that you forgot you had. Most people are using Claude as a search engine. The people building second brains with it are using it as an intelligence layer on top of everything they know. The gap between those two use cases is the gap between asking Google a question and having a research partner who has read everything you have ever written. Bookmark this. Build it tonight.show more

I was tired of using Obsidian with my second brain. It was very expensive, so I built this using Kimi k2.6, and I made my own version of Obsidian, which works locally on your Mac. You can use this, and you also can use BY-OK. You can bring your own API keys. Please, if you don't want to read through this entire article, you can just start using this and get into the second brain environment immediately.

Here is a new way to build your own ChatGPT from scratch

Obisidian + Claude is a perfect blend

The entire "Second Brain" creator economy just collapsed into a 4-step checklist. People spent years and thousands of dollars trying to build complex Notion systems, only to find out the ultimate setup is just plain text and Claude running locally.

If you save your files locally in a Mac like document folder obsidian can find it as well as Claude and shared across devices with iCloud backup it’s that simple

thanks Dr.Rob

intelligence layer over search is the real shift

this is nice

banger, looks awesome

wow, this second brain looks insane

Just absolutely blew my brain

this changes everything

I know right it’s very powerful

@Av1dlive how's Claude compared to ChatGPT? Been using Obsidian but curious if adding AI really makes a difference.

Great

Thanks for the compliment, Adel.

Nice and big How much tokens and context does it take to transverse this?

good share mate

thanks qurool what did you like about it

Not a second brain btw

ai second brain the best assistant for us in 2026 yk

this thing is crazy

Portable knowledge wins

Exactly why I build familiar, my sort of alternative with a second brain by Obsidian

this is absolute banger

Thank you, Rohit. I really appreciate it.

Lol I saw this too on a reel and then visited the repo surely it's really good to give Claude a secondary access

This is so good. Thanks for the compliment.

in just 15 minutes, you can get a tool that makes the workflow way better

My brain is more than enough though

W Vee but you should try this once

nice avid

So Roan, you have been an absolute banger, my man. I've been just trying to keep up with how good the content you are sharing is. Thanks for the support.

Good tip for individual usage, it can make your Claude better, but if you need a shared memory for collaborative work there’s always @wemoryai

Nice

Claude plus Obsidian is such a strong combo

What’s the enterprise version?

A good and fast computer is nessesary

Works great when the connection doesn't time out.

wait, so just like that? sounds too easy!

The second brain becomes useful when it stops being storage and becomes a workflow: capture, retrieve, synthesize, verify, and update. The missing step for most setups is the review loop.

wowviee

How did you build that ui?

Claude Code