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Use Case

Your AI Second Brain — Without the System You Have to Maintain

Second brain systems (Notion, Obsidian, Roam) require significant upfront investment and ongoing maintenance. Most people build them and stop using them within weeks.

TLDR:Lucy OS1 builds your second brain through conversation. Tell Lucy things by voice — it stores them, organises them, and surfaces them when relevant. No system to maintain, no app to fill in. Try Lucy OS1 for free — no credit card required.

How Lucy OS1 Helps

Capture by voice, not writing

Capture ideas, context, and information by saying them to Lucy. No note-taking app, no typing required.

Automatic memory extraction

Lucy extracts structured memories from conversations — people, projects, decisions, preferences — and stores them automatically.

Contextual retrieval

When you start a new conversation about a project, Lucy retrieves relevant stored context automatically — you do not have to search for it.

Zero maintenance required

There is no system to organise, no database to maintain, no hierarchy to decide. Just talk to Lucy and it handles storage.

Memory you can audit

Every stored memory is viewable and editable. You can delete anything Lucy stored, or correct inaccuracies.

Try Lucy OS1 — setup takes 15 seconds

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Free tier available. No credit card required.

Frequently Asked Questions

How is Lucy OS1 different from Notion or Obsidian as a second brain?
Notion and Obsidian are excellent note-taking systems that require you to write things down and maintain an organisational structure. Lucy OS1 captures through conversation and handles storage automatically. There is no system to maintain — the second brain builds itself through your daily interactions.
Can I trust Lucy to accurately remember what I said?
Lucy extracts memories from conversation context and stores them as structured facts. You can review every stored memory, edit inaccuracies, and delete anything you do not want retained. The memory system is designed to be auditable and user-controlled.
What kind of things does Lucy remember?
Lucy stores facts about your projects, the people you work with, preferences you have expressed, decisions you have made, and context you have shared. Sensitive personal information can be excluded from memory storage at your discretion.

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