FOSSPicks

Knowledge editor

Obsidian

Linux is the worst choice of operating system for people who like to procrastinate because there's simply too much choice. There's also so much to learn when you do make a choice that it makes decisions even easier to postpone while you research another option. This is particularly true when it comes to note-writing applications because procrastinators are also often prolific note takers. There are so many ways to make your own notes that it's easier to spend time researching them than it is to make a decision and start using one. There are command-line tools, Markdown editors, editor add-ons such as Vimwiki and Emacs Org mode, and echo on the command line to a simple file. These all have their advantages, but none of them can easily link between notes and their wider context as you add links, make notes, and create different categories. This is a problem that Obsidian has been developed to solve, and it's already become hugely popular in the world of productivity hacking, thanks to it both supplanting other proprietary applications and being particularly good.

Obsidian is a desktop-bound note-taking application built on Electron. It takes more system resources than nano, but you do get beautiful font rendering, spell checking, syntax highlighting, and excellent cross-platform compatibility, with AppImages for both ARM64 and x86, as well as a multitude of other install options. To start taking notes you first need to create a vault. A vault is like a folder or directory, and Obsidian includes a brilliant example Help vault containing its own documentation. With a vault started or loaded, Ctrl+N will create a new note and you can start typing. The notes themselves are written in simple Markdown so they can be read as raw text without difficulty, and they remain easily accessible from whichever editor you might want to use. The editing view can be split to show more than one note at a time, and a preview button lets you quickly see how they look rendered outside of the Markdown syntax. This can all be a little confusing in the beginning, but along with the excellent help documentation there's also a great hint system that will pop up to show you options when you start using commands and linking things. A command palette can also be opened to show all the shortcuts, and there's a Markdown bulk-importer that will convert some of the special formatting from rival applications. Markdown also means there's very little to learn about the syntax, except in the way Obsidian uses links.

The real genius of Obsidian is the way it's built around links, or connections. These are created by adding double square brackets to standard Markdown link syntax, creating back-links to pages within the vault. If a page doesn't exist, it can be created at the same time with a simple click. In this way you can quickly write not just your notes but also build a complex model of the relationships between one note and another without any further effort. Obsidian's best use of this feature is in the Graph view. This is a way to visualize your links, showing a node for each document and lines between nodes to illustrate the links. Mouse over a single note to highlight its connections and explore more relationships by filtering the nodes or animating their creation over time. It's a brilliant way of seeing which notes are interrelated and how they're organized, and it's a genuine reason to use Obsidian over any other note-taking tool you might otherwise be tempted by.

Project Website

https://obsidian.md

1. Markdown files: Your notes are saved as Markdown and the background intelligence comes from using an SQLite database. 2. Vaults: Sets of notes are arranged in vaults, which are analogous to filesystem directories. You can also add plugins. 3. Graph view: Maps each link from every note to the note they target, making it easy to see the relationship between your notes. 4. Node highlight: Hover over a note node to see which notes it references and vice versa. 5. Editor: The Markdown editor is simple, clean, and effective with an optional output preview. 6. Export: Notes can be published directly or compiled into a PDF. 7. Help: The help documentation has its own vault and is both substantial and well written.

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