Obsidian is a great tool for collecting ideas.

I use it mainly for the following reasons:

• Research
• Collecting information
• Saving some spontaneous ideas

Depending on my actual situation I prefer to use my laptop or my phone.
To always have access to my vaults, regardless of the device I am using, I need to sync the data between my devices. For that purpose Obsidian provides the Sync Plugin. But for this plugin they charge you 4$ a month, which I don't want to spend, if there is another option.

I found a solution which meets my requirements:

• Crossplatform availability: Linux, Windows and Android
• No manual work: no downloads, no copies, no nothing
• free to use

What I use now:

• Syncthing-fork on my android phone
• Syncthing on my windows and linux machine
• Shell script to backup the data in a git repository

Setup:

• Install syncthing on the devices you want to use Obsidian
• Create folders on every device to store the Obsidian files locally
• Linking the devices using the QR code
• Share the folders (also using QR code)
• Copy your vault into the new directory and open it in Obsidian
• optional:
  • create a git repository in your Obsidian directory and backup the files to your github account

Obsidian Git autobackup

#!/bin/bash

git-autopush() {
  REPO_DIR = $1
  cd "$REPO_DIR" || {
    echo "Repository not found: $REPO_DIR"
    exit 1
  }

  # Check if the repository has changes
  if [[ -n $(git status --porcelain) ]]; then
    git add .
    git status

    TIMESTAMP=$(date +"%Y-%m-%d %H:%M:%S")
    git commit -m "Auto-commit: $TIMESTAMP"

    git push origin "$(git rev-parse --abbrev-ref HEAD)" || {
      echo "Failed to push changes."
      exit 1
    }

    echo "Changes pushed successfully."
  else
    # Check if there are committed changes to push
    LOCAL_BRANCH=$(git rev-parse --abbrev-ref HEAD)
    if [[ -n $(git rev-list origin/"$LOCAL_BRANCH"..HEAD) ]]; then

      # Push changes
      git push origin "$LOCAL_BRANCH" || {
        echo "Failed to push changes."
        exit 1
      }
      echo "Changes pushed successfully."
    fi

  fi
}

git-autopush $1