Aulafy
ESEN
Courses
Courses/Advanced and secure RAG/Local second brain with Obsidian and RAG
Lesson

Local second brain with Obsidian and RAG

Obsidian works very well as a knowledge base because your notes are Markdown. The challenge isn't reading files: it's cleaning, tagging, filtering, and citing without turning your second brain into vector noise.

  • Prepare Markdown notes for RAG without losing context.
  • Use frontmatter and folders as metadata.
  • Avoid mixing private notes, drafts, and reliable knowledge.
TerminalCode
---
title: "Política de devoluciones"
type: "fuente"
status: "vigente"
tenant_id: "personal"
tags: ["soporte", "legal"]
---

# Política de devoluciones

Texto claro, actualizado y con fecha.
Enlaces relacionados: [[Garantías]], [[Atención al cliente]]

What to exclude

  • Personal journals if they aren't needed.
  • Unreviewed drafts.
  • Notes with secrets, keys, or third-party data.
  • Empty templates and duplicate files.
TerminalCode
payload:
  source: "obsidian/soporte/devoluciones.md"
  title: "Política de devoluciones"
  status: "vigente"
  tags: ["soporte", "legal"]
  backlinks: ["Garantías", "Atención al cliente"]
  updated_at: "2026-07-05"

Official sources

  • Obsidian basic formatting syntax
  • Obsidian Flavored Markdown
  • Qdrant documentation
Qdrant Multi-User and PermissionsPrompt injection in RAG