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How to install Opensidian as a system package on Ubuntu with Opensidian

Install the DEB package to get a menu entry, icon, and the notes app in one step.

Who it is forAn Ubuntu or Debian user who wants a markdown notes app and does not want to build anything.

The problemThey want a notes app that opens from the desktop menu without managing WebKit or Rust themselves.

The outcomeOpensidian is installed as a system package and starts from the application menu.

What you need first

  • A Linux x86_64 machine (the README lists Linux x86_64 only)
  • For the DEB path: a Debian or Ubuntu system with sudo access
  • For the source build: build tools, WebKitGTK 4.1 development packages, and Rust 1.98.0

Steps

  1. Download the DEB file from the Install section of the Opensidian README (opensidian-0.6.2-x86_64.deb).
  2. Open a terminal in the folder where the file was saved.
  3. Run sudo apt install ./opensidian-0.6.2-x86_64.deb
  4. Open the application menu and launch Opensidian.
  5. Open a vault folder with the Opensidian command, as described in the README features.

Prompt for your agent

In the jpzk/opensidian repo, follow the Install table to download the DEB package for version 0.6.2 into <download-folder>, then install it with apt. Report the exact apt output line that confirms installation. Verify that running `opensidian --version` or launching it from the menu opens a window.

Caveat. The README says the app is under heavy development and the DEB was tested on Debian 13 and Ubuntu 26.04 LTS only.

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