Obsidian tech note

Obsidian Developer Technical Learning Note System

A template system for systematically managing the entire process of learning new technologies, practicing, performing comparative analysis, solving problems, and reflecting -- all within Obsidian.

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1. Document Type Detection

Analyzes keywords from user requests to automatically select the appropriate template from 7 categories.

Detection Priority

Priority	Category	Detection Keywords	Template
1	troubleshooting	error, bug, fix, debug, resolve	troubleshooting
2	comparison	vs, compare, difference, alternative, choose	comparison
3	pattern	pattern, architecture, design	architecture-pattern
4	lab	lab, tutorial, hands-on, practice, walkthrough	code-lab
5	til	TIL, today, reflection	til
6	moc	MOC, index, list, roadmap, organize	moc-index
7	concept	concept, understand, learn, principle, how it works (default)	tech-concept

Detection Rules

1. Keyword matching: Check whether the request contains detection keywords
2. Priority application: If multiple types match, select the type with the highest priority
3. Ambiguous cases: If determination is difficult, ask the user about the document type
4. Default: If no keywords match, select concept

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2. Template List

Core Templates (4 types)

The essential templates used most frequently in daily practice.

#	Template File	Purpose	Category	tp.system.prompt
1	tech-concept.md	Learning new technical concepts	concept	1 (tech stack)
2	code-lab.md	Code practice / tutorial walkthrough	lab	1 (tech stack)
3	troubleshooting.md	Error resolution / debugging records	troubleshooting	0
4	til.md	TIL / daily learning records	til	0

Extended Templates (3 types)

Extended templates used in specific situations.

#	Template File	Purpose	Category	tp.system.prompt
5	comparison.md	Library / framework comparison analysis	comparison	2 (comparison targets A, B)
6	architecture-pattern.md	Design pattern / architecture learning	pattern	1 (pattern name)
7	moc-index.md	Topic-based note collection index	moc	1 (topic name)

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3. Plugin Dependencies

Required

Plugins that must be installed for this template system to function.

Plugin	Role	Used In Templates
Templater	Automatic date/filename insertion, user input prompts, template automation	All
DataView	Dynamic queries based on YAML frontmatter, automatic list/table generation	MOC Index, TIL

Recommended

Plugins that significantly enhance the learning experience.

Plugin	Role	Used In Templates
Tasks	Learning checklists, review schedules, progress tracking	Tech Concept, Code Lab, Pattern
Advanced Table	Comparison table editing/sorting, Tab key cell navigation	Comparison Analysis
Excalidraw	Architecture diagrams, system structure diagrams	Architecture Pattern

Optional

Additional plugins useful for specific workflows.

Plugin	Role	Used In Templates
Kanban	Learning progress board (To Do / In Progress / Done)	External board integration
Outliner	Hierarchical outline editing, fold/unfold	Tech Concept, Pattern
Calendar	TIL date-based navigation	TIL

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4. Vault Folder Structure

Vault/
├── _templates/           # Templater template folder (specified in Templater settings)
├── 00-MOC/               # MOC index pages
├── 01-Concepts/          # Tech concept notes
├── 02-Labs/              # Code lab notes
├── 03-References/        # Comparison analysis, troubleshooting, pattern notes
├── 04-TIL/               # TIL / daily learning records
│   └── 2026/
│       └── 02/
└── Assets/               # Images, Excalidraw files
    └── Excalidraw/

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5. Unified YAML Frontmatter Schema

The YAML frontmatter superset shared by all templates.

Required Fields (5)

Field	Type	Description	Example
title	string	Note title	"Understanding React Hooks"
created	string	Creation date (YYYY-MM-DD)	"2026-02-15"
tags	list	Classification tags	[concept, react]
category	string	Category (one of 7 types)	"concept"
status	string	Learning status	"seedling"

Optional Fields

Field	Type	Description	Used In Templates
difficulty	string	Difficulty (beginner/intermediate/advanced)	concept, lab, comparison, pattern
tech-stack	list	Related tech stack	concept, lab, comparison, pattern
related	list	Related note links	All
moc-topic	string	MOC topic (for DataView queries)	moc-index

Status Flow

seedling  -->  growing  -->  evergreen
(draft)       (refining)    (complete/stable)

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6. Gradual Adoption Strategy

Phase 1: Getting Started (Week 1)

• Install only Templater and DataView plugins
• Use only the 4 Core templates (concept, lab, troubleshooting, til)
• Copy Core templates to the _templates/ folder
• Focus on building the TIL habit

Phase 2: Expansion (Weeks 2-3)

• Add Tasks and Advanced Table plugins
• Add 3 Extended templates (comparison, pattern, moc)
• Organize existing notes with MOC index
• Start using review checklists

Phase 3: Optimization (Week 4+)

• Introduce Optional plugins like Excalidraw, Kanban
• Customize DataView queries
• Set up Templater shortcuts (Alt+1~7)
• Establish your own workflow

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7. Templater Configuration Guide

Template Folder Location

Obsidian Settings > Templater > Template Folder Location: _templates/

Auto-Insertion Variables

Templater Syntax	Description
<% tp.date.now("YYYY-MM-DD") %>	Today's date
<% tp.date.now("YYYY-MM-DD", 7) %>	Date 7 days later (review schedule)
<% tp.file.title %>	Current file name
<% tp.system.prompt("Question") %>	User input prompt
<% tp.file.cursor(1) %>	Cursor position designation

tp.system.prompt Rules

• Core templates: Maximum 1-2 (prioritize quick note creation)
• Extended templates: As many as needed
• All prompts must have defaults: tp.system.prompt("Question") || "untagged"

Recommended Shortcuts

Shortcut	Template
Alt+1	tech-concept.md
Alt+2	code-lab.md
Alt+3	troubleshooting.md
Alt+4	til.md
Alt+5	comparison.md
Alt+6	architecture-pattern.md
Alt+7	moc-index.md

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8. DataView Query Patterns

Recent Learning Notes (7 days)

TABLE category AS "Type", status AS "Status", tech-stack AS "Tech"
FROM ""
WHERE category != null
  AND date(created) >= date(today) - dur(7 days)
SORT created DESC
LIMIT 10

Seedling Status Notes (Review Needed)

TABLE category AS "Type", created AS "Created", tech-stack AS "Tech"
FROM ""
WHERE status = "seedling"
SORT created ASC

Notes by Tech Stack

TABLE category AS "Type", status AS "Status", difficulty AS "Difficulty"
FROM ""
WHERE contains(tech-stack, "React")
SORT created DESC

Note Count by Category

TABLE WITHOUT ID
  category AS "Category",
  length(rows) AS "Count"
FROM ""
WHERE category != null
GROUP BY category
SORT length(rows) DESC

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9. Tasks Usage Patterns

Basic Learning Checklist

- [ ] Concept understanding complete
- [ ] Code practice complete
- [ ] Summary and link connections
- [ ] Review in 1 week [scheduled:: 2026-02-22]

Query All Incomplete Tasks

not done
group by filename
sort by scheduled

Reviews Scheduled This Week

not done
scheduled before next week
sort by scheduled

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10. Workflow

New Note Creation Flow

1. Ctrl+N or Templater shortcut (Alt+1~7)
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2. Select template (template matching the category)
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3. Enter basic information via Templater prompts (Core: 0-1, Extended: 1-2)
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4. YAML frontmatter + body structure auto-generated
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5. Write body content (required sections first, optional sections as needed)
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6. Connect related note links ([[links]])
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7. Automatically reflected in MOC index (DataView queries)

Review Cycle

Created (seedling) --> Review after 1 week --> Re-review after 1 month --> Transition to evergreen
                            |                       |                            |
                     Supplement content        Add examples              Update status

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11. Important Notes

1. Frontmatter consistency: All notes must include YAML frontmatter (DataView queries depend on it)
2. Unified category values: Use only the 7 types: concept, lab, comparison, troubleshooting, pattern, til, moc
3. Tag conventions: Combine category tags (#concept, #lab, etc.) + tech tags (#react, #kubernetes, etc.)
4. Use links: Actively use [[note name]] wiki-links to connect notes
5. Update status: Update seedling -> growing -> evergreen as learning progresses
6. Excalidraw file path: Save to the Assets/Excalidraw/ folder