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Get started

NEW Open source on GitHub

One line
to Claude,
and your own
wiki appears.

Paste one setup prompt into the Code tab of Claude Desktop and Claude handles the install and setup. What you read links together, and the wiki gets smarter the more you use it.

View on GitHub
Stuck? We will set it up with you

You saved plenty,
but can’t find any of it.

Plenty of places to save things, no way to find them again.

  • Browser bookmarks

    The title stays, the reason you saved it doesn’t.

  • Downloads folder

    business-plan(final).hwp right next to business-plan(final2).hwp.

  • KakaoTalk notes to self

    The link you sent yourself yesterday has already scrolled away.

  • Notes app and camera roll

    One topic, split across three places.

Sorting takes one sentence.

Tell Claude “Process my clippings” and it reads what you saved and files it into documents by topic.

The only app you open
is Claude.

Ask in plain words; sorting and record-keeping run in the background.

  1. Sort
  2. Ask
  3. Graph
  4. Weekly report

Ask your wiki

Every answer shows which document it came from. Your originals stay untouched.

HWP files too

Turns PDF, Word and HWP files into documents you can search and link.

Undo a bad sort

Every change is recorded. No need to know git.

Ask, and see the graph

Write “Show the link graph” and see at a glance how your documents connect.

All you need is
Claude Pro.

A Pro plan or higher and Claude Desktop. The free plan won’t work. Claude takes care of the rest from a one-line prompt.

How it works

Onboarding checklistClaude does 5 of 7

  1. Check and install the toolsClaude
  2. Create your wiki repositoryClaude
  3. Configure the environmentClaude
  4. Prepare the knowledge viewerClaude
  5. Verify the installClaude
  6. Sign in to GitHub (free sign-up if needed)You
  7. Subscribe to Claude Pro and sign inYou

From subscription to first wiki
in three steps.

Set it up once, then just talk to it.

  1. 01 · Prepare

    Subscribe and sign in

    Get a Claude Pro plan or higher, sign in to Claude Desktop and open the Code tab.

  2. 02 · One line

    Paste one line

    Claude reads the 2nd-brain setup guide (SETUP.md) on GitHub and walks through onboarding.

    • Check the tools
    • Sign in to GitHub
    • Create your wiki repository
    • Configure the environment
    • Verify the install

  3. 03 · From then on

    Just talk

    Once setup is done, open a new session on your wiki folder in the Code tab. “Process my clippings”, “Show the link graph”. The wiki grows as you use it.

FAQ

Can’t find your answer? Send us a question.

Contact us

  • No. Write the one-line prompt and Claude handles the install and setup. If Homebrew is missing, Claude gives you one line to paste into Terminal, and for the GitHub sign-in it tells you the code to enter.

  • Leave a question in the form below and LemonCloud will help.

  • 2nd-brain is public on GitHub. You need a Claude Pro subscription or higher separately.

  • Your wiki is Markdown files in your own GitHub repository.

  • The free plan won’t work. Get a Pro plan or higher and sign in to Claude Desktop to start.

  • Yes. Along with PDF and Word, it turns Hangul (HWP) documents into wiki documents.

  • It is made for individuals and small teams.

Questions?
Just ask.

Stuck on setup, or want it for your team? Leave a note and we will reply to the contact you give.

What is it about?

What we collect

LemonCloud collects your name, contact, inquiry type and message to answer your inquiry. We keep it for one year from your inquiry, or until you ask us to delete it. You may decline, but then we cannot take your inquiry.

A wiki that starts
with one line.

Paste it into the Code tab of Claude Desktop.

View on GitHub