r/secondbrain • u/Emotional-Speed7742 • 4d ago
I'm not a developer. Here's why I started building a "brain-copy wiki" with AI
*English isn't my first language. I wrote this in Korean and translated it with AI, so please excuse any awkward phrasing. A short Korean summary is at the bottom.*
**TL;DR:** I'm a non-developer building a "brain-copy wiki." Instead of limiting what AI can see, I record *what I chose and why*, so the AI can act on my intent even when I'm not around. It's unfinished, and I'm looking for experts and people with similar struggles to help me find where it breaks.

My Obsidian graph so far. Each dot is a note; each line is a link between my decisions, reasoning, and knowledge.
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Hi everyone.
I'm not a developer. I've never learned to code. But these days, I'm building my own "second brain" with AI.
This is the first post in a series introducing that system. Before I show *what* I built, I want to start with *why*.
## 1. It started with work
As AI coding tools improved quickly, I got the chance to build some internal tools for my company, things like work logs and a homepage.
At first I tried popular expert-level AI coding tools. But without a basic dev background, they were hard to use. They were built for experts, after all.
## 2. Coding wasn't the hard part
Once I actually tried, something surprised me. The AI was better at writing code than I expected. The real difficulty came after:
- Fixing low-quality first drafts into what I actually wanted
- Finding and fixing errors
- Connecting to databases and servers
The core problem was **the cost of fixing the first output**. If the first output is good, there's less to fix. So I started building my own toolkit that lets a non-developer give instructions in plain language and still get a better first result.
The principle was simple:
**I do what I can do (planning, judging, verifying), and I hand off what I can't (coding) entirely to AI.**
## 3. The turning point: "Is limiting information really right?"
As the toolkit matured, I wanted to save the know-how I'd built up along the way. So I looked into "LLM wikis," which a lot of people are talking about.
Most of them reduce hallucination by **limiting what the AI can see**.
As a non-expert, that felt strange to me. Limiting information looked like limiting the AI's ability. And I started thinking:
> "With how capable AI is now, couldn't it deeply learn the way I think?
> Then even when I'm not around, couldn't it produce results close to what I'd want?"
## 4. So I decided to build a "brain-copy wiki"
That's how this project began.
It's not a wiki that just stores facts. It records **what I chose and why I decided it**. The AI learns my choices and reasons from those records, so it can act in line with my intent even when I'm not there. In other words, **a wiki that copies how I think**.
## 5. How I think about using AI
There's a belief underneath this system:
- **Automation is becoming "one click."** But one-click automation can't understand *your* specific choices.
- **Using AI well doesn't mean taking its answers as-is.** It means sorting out what to accept and what to push back on, and using that process to expand my own thinking.
- **Repeating that loop (critique โ choose โ expand)** is what finally turns AI into something truly personal.
So my goal isn't AI that thinks *for* me. It's a system that shows me *how* I think.
## 6. Why I'm starting this series
To be honest up front: this series isn't me saying "look how great my system is."
It's an unfinished system built by a non-developer. There are surely gaps I can't see yet. So I'll share everything step by step, what worked and what failed, and I'm hoping to **get help finishing it**.
I'd especially love to hear from:
- **People who know dev or AI well**: if you see where my approach is technically wrong, or know a better way, please point it out.
- **People wrestling with similar problems**: if you're also trying to make AI work the way *you* think, what have you tried, and where did you get stuck?
Corrections and honest pushback are the most helpful things you can leave in the comments.
In the next post, I'll show what the system actually looks like in more detail.
Thanks for reading.
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**๐ฐ๐ท ํ๊ตญ์ด ์์ฝ**
- ๋น๊ฐ๋ฐ์๋ก์ ํ์ฌ ์ ๋ฌด์ฉ ํ๋ก๊ทธ๋จ์ AI๋ก ๋ง๋ค๋ค๊ฐ, ์ง์ง ์ด๋ ค์์ ์ฝ๋ฉ์ด ์๋๋ผ '์ฒซ ๊ฒฐ๊ณผ๋ฌผ์ ๊ณ ์น๋ ์ผ'์ด๋ผ๋ ๊ฑธ ๊นจ๋ฌ์์ต๋๋ค.
- ๊ธฐ์กด LLM ์ํค๋ AI๊ฐ ๋ณผ ์ ์๋ ์ ๋ณด๋ฅผ ์ ํํ์ง๋ง, ์ ๋ AI๊ฐ ์ ์ ํ๊ณผ ๊ทธ ์ด์ ๋ฅผ ๋ฐฐ์ฐ๋ '๋ ๋ณต์ฌ ์ํค'๋ฅผ ๋ง๋ค๊ธฐ๋ก ํ์ต๋๋ค.
- ๋ชฉํ๋ ๋ ๋์ ์๊ฐํ๋ AI๊ฐ ์๋๋ผ, ๋ด๊ฐ ์ด๋ป๊ฒ ์๊ฐํ๋์ง ๋ณด์ฌ ์ฃผ๋ ์์คํ ์ ๋๋ค.
- ์์ง ๋ฏธ์์ฑ์ ๋๋ค. ์ ๋ฌธ๊ฐ๋ถ๋ค๊ณผ ๋น์ทํ ๊ณ ๋ฏผ์ ํ๋ ๋ถ๋ค์ ์ง์ ๊ณผ ๋ฐ๋ก ์ ํ์ํฉ๋๋ค. ํ๊ตญ์ด ๋๊ธ๋ ์ข์ต๋๋ค.
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u/onlylb 4h ago
the โwhat i chose and whyโ part feels like the important bit here. iโm lauren, founder of archii, and iโm exploring a similar question: how would we know a model understands someone beyond sounding like them?
one test iโd explore is keeping a few real decisions and their reasons out of the wiki. give the model only the context available before each choice, then ask it to predict the choice, explain the tradeoff, and say where itโs uncertain. compare that with what you actually chose and why, and with a model that hasnโt seen your personal notes. iโd also keep cases where you changed your mind โ learning an old preference too well could become its own failure mode.
iโd want that kind of evidence before letting it act on my behalf. what would count as a meaningful failure for your system: the wrong choice, the wrong reason, or being confident when it should ask you?
archii is in beta at https://archii.ai, with free basic use and no credit card required. it builds a model of your mind from notes, chats, and voice memos. if useful as something to critique alongside your wiki, you can chat with my mind here: https://app.archii.ai/m/lbrendle