Building a Zettelkasten in Obsidian

Prerequisites

• Obsidian installed (the note-taking app, not the volcanic glass, though the volcanic glass is also quite nice)
• Basic markdown knowledge
• A functioning short-term memory (optional, apparently)
• Patience for the slow start
• At least one existential crisis about your current note-taking system

What We’re Building

A Zettelkasten-style knowledge management system in Obsidian. Atomic notes, meaningful connections, and a system that actually grows smarter as you feed it. Think of it as building a second brain, except this one doesnt forget where you left your keys.

If you’ve ever looked at your existing notes folder and felt a wave of shame, this is for you.

The Approach

1. Understand Zettelkasten principles
2. Set up folder structure
3. Create note templates
4. Establish linking practices
5. Build review workflows

Nothing revolutionary on paper. The magic is in the execution.

Step 1: The Principles

Four principles. Tattoo them on your forearm if you must.

Atomic notes: One idea per note. If you can split it, split it. If you’re writing more than a paragraph, you’re almost certainly cramming two ideas together and hoping nobody notices.

Meaningful links: Dont just link things. Explain why you’re linking. “This relates to X” is lazy. “This relates to X because Y contradicts Z” is where the actual knowledge lives.

Your own words: Copying quotes isnt a Zettelkasten. It’s a scrapbook. Rewrite everything in your own language. If you can’t explain it, you don’t understand it yet.

Regular review: Notes without review are just a graveyard with better formatting.

Step 2: Minimal Folder Structure

vault/
├── Inbox/          # Capture quickly
├── Notes/          # Permanent notes
├── References/     # Source materials
├── Projects/       # Active projects (temporary)
└── Templates/

Five folders. That’s it. Resist the overwhelming urge to create seventeen subfolders with colour-coded prefixes. I know it feels productive. It isn’t. Links matter more than folders, every single time.

Step 3: Note Templates

Two templates will carry you surprisingly far.

Fleeting Note (for Inbox):

---
created: {{date}}
type: fleeting
processed: false
---

# Quick Thought

{{cursor}}

## Source
Where did this come from?

## Why it matters
Why am I writing this down?

The “Why it matters” section is doing the heavy lifting here. If you can’t answer it, the note probably isn’t worth keeping. Be honest with yourself.

Permanent Note (for Notes/):

---
created: {{date}}
type: permanent
aliases: []
---

# {{title}}

{{cursor}}

---

## Links
-

## References
-

Simple on purpose. The structure should get out of your way, not become a procrastination tool.

Step 4: Processing Inbox Notes

This is where most people give up, and honestly, I get it. Processing notes is the vegetables of knowledge management. Nobody wants to do it, but your system dies without it.

Daily or weekly, work through your fleeting notes:

1. Is this worth keeping? Delete ruthlessly. Most of your captures are rubbish in hindsight. That’s fine.
2. Can I split this? One idea per note. Always.
3. Rewrite it. Your words, not quotes. No exceptions.
4. Link it. Find at least one connection. If nothing connects, question whether it belongs.
5. Move it. Inbox to Notes.

# Processing Checklist
- [ ] Reviewed all inbox notes
- [ ] Deleted irrelevant captures
- [ ] Rewrote in own words
- [ ] Added at least one link per note
- [ ] Moved to Notes/

If your inbox has more than 20 items in it, you’re capturing too much and processing too little. Fix the ratio.

Step 5: Linking Practices

This is the entire point of the system, so please, for the love of all that is good, dont phone it in.

Bad link:

This relates to Spaced Repetition.

That tells you nothing. You could have guessed that from the title alone.

Good link:

This relates to Spaced Repetition, because retrieval practice strengthens memory by forcing reconstruction rather than passive review.

The explanation is the knowledge. The link itself is just a pointer.

Link blocks at the end of notes:

---

## Links
- Learning - this is a technique within the broader topic
- Memory - explains why this works neurologically
- Anki - practical implementation of this concept

Every link should answer “why does this connection matter?” If it doesn’t, it’s decoration.

Step 6: Note Naming

Use descriptive, claim-based titles. This single habit will change how you think about your notes.

Bad: Spaced Repetition Good: Spaced repetition strengthens memory through retrieval practice

Bad: Book Notes - Atomic Habits Good: Habits form through cue-routine-reward loops

The title should tell you what the note claims, not just what topic it vaguely gestures at. When you’re scanning a list of notes, “Spaced Repetition” tells you nothing. The claim-based version tells you exactly what you thought and why.

Step 7: Dataview for Discovery

Find orphaned notes, surface notes needing review, and track recently created notes. Dataview queries turn your vault from a static archive into something that actively shows you where the gaps are.

If you haven’t installed the Dataview plugin yet, go do that now. I’ll wait.

Step 8: Weekly Review

# Weekly Zettelkasten Review

## Inbox Processing
- [ ] Processed all fleeting notes
- [ ] Inbox is empty

## Link Maintenance
- [ ] Reviewed orphaned notes (see query)
- [ ] Added links to isolated notes
- [ ] Deleted notes that aren't useful

## New Connections
What unexpected connections did I find this week?

## Questions
What am I curious about that I haven't captured yet?

The “New Connections” section is the best bit. This is where the Zettelkasten starts paying dividends. You’ll find yourself connecting ideas from completely different domains, and it feels genuinely magical every time.

Step 9: Using the Graph View

The graph view is seductive but mostly useless at the default zoom. It looks impressive in screenshots, which is about all it’s good for unfiltered. Filter it properly and it becomes genuinely useful:

1. Open the local graph on your current note
2. Set depth to 2
3. Enable orphans to find disconnected notes
4. Colour by folder or tag

Use it to find:

• Clusters of related ideas
• Missing connections between topics you’d expect to be linked
• Isolated notes that desperately need linking or deleting

The Result

After 6 months of actually sticking with this:

• Hundreds of atomic notes, each one genuinely useful
• Dense connections between ideas you’d never have paired manually
• Notes surfacing unexpectedly during new research, like little gifts from past you
• An external brain that genuinely helps you think, not just store

It compounds. That’s the whole secret. Every note you add makes every other note slightly more valuable.

What I’d Do Differently

Start with fewer notes, better processed. I dumped too many highlights into the system early on and ended up with an inbox that looked like a landfill. Quality over quantity. A hundred well-linked notes beats a thousand isolated ones, and it’s not even close.

Also, I’d have trusted the process sooner. The first two months feel like you’re writing notes into a void. You are. Keep going anyway.

A Zettelkasten feels completely pointless for the first few months. Then connections start appearing that you never planned. That’s when you realise the system was working the whole time, you just couldn’t see it yet.