Master Brain – Obsidian Atomic Notes Template

This repo contains the folder structure + workflows I use to run my “second brain” in Obsidian.

It’s built around Zettelkasten / atomic notes: small, self-contained ideas that link together to form a knowledge graph. Don't worry about structure, the folders are just here to be used as a guideline, not a rigid filing cabinet.

If you clone this repo into Obsidian, you’ll get:

• A clean, opinionated structure
• A system for projects, references, and tags that stays flexible as your life changes

If you do not have Obsidian you can download it here: https://obsidian.md/

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Folder Structure Overview

1. Rough Notes

Purpose: Capture raw, pictures, documents, links, and messy thoughts quickly.

• Use this as your inbox.

• Meeting notes, brain dumps, random ideas, clipped text, half-formed thoughts.

• Don’t worry about structure here. The only rule: capture first, and use tags/ references to make connections.

Typical examples:

• 2025-11-13 – Morning brain dump.md

• Random idea – marketing flywheel for local businesses.md

• Meeting – Client X discovery call.md

Later, you’ll process these into Atomic Notes, Direct Tags, or Indexes.

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2. Source Materials

Purpose: Store external inputs and references.

This is your reference library for:

• PDFs, ebooks, articles

• Lecture notes, slides, screenshots, web clippings

• Photos of whiteboards

• Contacts / “rolodex” style notes

• Issues / tickets / problem statements (that you can reference later)

You can either:

• Store files directly inside here (/PDFs, /Screenshots, etc.), or

• Create “Source notes” that summarize a book, video, or article and link to the file.

Example:

• Books/How to Take Smart Notes.md

• Videos/YouTube – Zettelkasten workflow walkthrough.md

• Contacts/Jane Doe – Product Manager @ Company.md

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3. Direct Tags

Purpose: High-level concept buckets that will be referenced often.

Think of Direct Tags as evergreen topic hubs (but file-based, not hashtags).

These are notes you’ll jump to frequently, like:

• Productivity.md

• Cybersecurity.md

• Obsidian.md

• Marketing.md

• Projects.md

Inside each Direct Tag note:

• Add a brief explanation of the topic

• Manually curate important links to Atomic Notes, sources, and indexes

• Optionally add a section like:

## Related Notes - [[202511131230 – Deep work vs shallow work]] - [[202510221015 – Task batching workflow]] - [[Index – Focus Systems]]

Direct Tags = big buckets you revisit every week.

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4. Indexes

Purpose: High-resolution maps of specific areas using [[links]].

Where Direct Tags are broad buckets, Indexes are more curated and structured.

Good candidates for Indexes:

• A specific project area

  • Index – EcommBeam SaaS.md

• A life domain

  • Index – Career Development.md

• A research theme

  • Index – Embedded Cybersecurity.md

Inside an Index:

• Break things down by section:

# Index – Embedded Cybersecurity ## Core Concepts - [[202510011200 – Threat modeling for avionics]] - [[202510041530 – RF attack surfaces overview]] ## Projects - [[Project]] - [[Project Program]] ## References - [[NIST 800-53 Summary]] - [[Notes]]

Indexes = “table of contents” notes for key domains.

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5. Templates

Purpose: Speed up consistent note creation.

Use this folder to store Obsidian templates you can quickly apply via the Templates:

Common templates:

• Template – Daily Note.md

• Template – New Contact.md

• Template – Issue / Problem.md

Adapt these to your style—but keep templates simple and repeatable.

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6. Atomic Notes

Purpose: The core of the system – small, self-contained notes that each express one idea.

This is where your processed, long-term knowledge lives.

Rules of thumb for Atomic Notes:

• One idea per note

• Named clearly, e.g.:

  • 202511131230 – Why atomic notes reduce friction.md

  • 202510251045 – Benefits of local-first software.md

• Each note stands alone: someone else should be able to read it and understand the core idea.

• Use links, not folders, for structure:

  • Link to Direct Tags ([[Productivity]])

  • Link to Indexes ([[Index – Cybersecurity]])

  • Link to related atomic notes via [[...]]

Over time this becomes your network of thoughts.

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How to Use This System (Workflow)

Here’s a simple daily workflow to get value from this structure:

1. Capture (Rough Notes)

• Dump thoughts into 1. Rough Notes.

• Don’t edit yourself—just capture.

2. Process (Move into Atomic Notes + Tags + Indexes)

On a regular basis (daily or weekly):

1. Open 1. Rough Notes.

2. For each rough note:

   • Extract any idea worth keeping into a new Atomic Note in 6. Atomic Notes.

   • Link that Atomic Note to:

     • At least one Direct Tag (e.g. [[Productivity]])

     • Any relevant Indexes

3. Delete or archive the processed Rough Note.

3. Grow (Link & Curate)

As you add more atomic notes:

• Link related ideas together using [[ ]].

• Update your Direct Tags and Indexes:

  • Add new important links.

  • Reorganize sections as topics mature.

This keeps the system alive and discoverable, instead of a static filing cabinet.

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Getting Started

1. Clone or download this repo.

2. In Obsidian:

   • Open the Master Brain folder as a Vault, or

   • Move the structure into an existing vault.

3. Enable helpful core plugins (recommended):

   • Daily notes

   • Templates

   • Backlinks / Graph view

4. Create your own templates under 5. Templates.

5. Start capturing in 1. Rough Notes and gradually building 6. Atomic Notes.

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Naming & Conventions (Optional but Recommended)

You can use any naming system, but here’s a simple pattern:

• Atomic Notes:
  YYYYMMDDHHmm – Short, descriptive title.md
  e.g. 202511131045 – Benefits of atomic notes.md

• Indexes:
  Index – Area or Topic.md
  e.g. Index – Career Development.md

• Projects:
  Project – Name.md
  e.g. Project – Launch Obsidian template repo.md

Consistency helps future-you find things fast.

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FAQ

Q: Do I have to use all these folders?
No. This is a starting point. If something feels redundant or you don’t use it, delete or merge it.

Q: Where do tasks / to-dos go?
You can:

• Put quick tasks inside Rough Notes or Daily Notes, or

• Maintain a dedicated project note in 6. Atomic Notes and manage tasks there.

Q: How “pure” Zettelkasten is this?
This setup is inspired by Zettelkasten and atomic notes, not a strict academic implementation. It’s meant to be practical and flexible.

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If you fork / adapt this template, feel free to:

• Add your own examples
• Share screenshots of your layout
• Open issues with ideas or improvements

License

Released under the MIT License Feel free to use, adapt, and share.