Mattia's Notes 📕

💎 Obsidian

Properties1
tagsnotetaking/obsidian, tools

2 min read

I just started using Obsidian a few days ago (October 2025). I’ve been writing in notetaking for quite a while since I used it for many documentations, school summaries, and similar projects. What I really like about Obsidian is that it’s open-source and offers a great graph view for linking notes.

The main reason I started using Obsidian is that I want to build my own knowledge base system, which I previously managed in Notion. I’m still happy with Notion, but for documentation, I prefer being able to easily link pages and visualize connections between topics in a graph view. This makes it much easier to find and explore related content.

To make my notes accessible to others, I also started using Quartz to publish them publicly.

Security

Obsidian API

Obsidian follows the local-first approach and therefore it doesn’t have a own REST API.

obsidian-local-rest-api is a tool which add a REST API to your local Obsidian instance.

Clients

Obsidian Like Visual Studio Code

Updated files of an Obsidian Vault

add-frontmatter-tag.sh

#!/usr/bin/env bash
 
set -euo pipefail
 
DIR="${1:-}"
 
if [[ -z "$DIR" || ! -d "$DIR" ]]; then
  echo "Usage: $0 <directory>"
  exit 1
fi
 
for file in "$DIR"/*; do
  [[ -f "$file" ]] || continue
 
  # Must start with frontmatter
  if ! head -n 1 "$file" | grep -q '^---'; then
    continue
  fi
 
  # Skip if Entertainment already present
  if awk '
    /^---$/ && ++d == 2 { exit }
    /^[[:space:]]*-[[:space:]]*Entertainment$/ { found=1 }
    END { exit found ? 0 : 1 }
  ' "$file"; then
    continue
  fi
 
  awk '
    BEGIN {
      in_frontmatter = 0
      tags_found = 0
      inserted = 0
    }
 
    /^---$/ {
      in_frontmatter++
      if (in_frontmatter == 2 && !tags_found && !inserted) {
        print "tags:"
        print "  - Entertainment"
        inserted = 1
      }
      print
      next
    }
 
    in_frontmatter == 1 && /^tags:/ {
      tags_found = 1
      print
      print "  - Entertainment"
      inserted = 1
      next
    }
 
    { print }
  ' "$file" > "${file}.tmp"
 
  mv "${file}.tmp" "$file"
  echo "Updated: $file"
done

Graph View