Did you know...? LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. Joplin is an open-source note-taking application designed to handle taking many kinds of notes, whether it is managing code snippets, writing documentation, jotting down lecture notes, or drafting a novel. Joplin has Markdown support, a plugin system for extensibility, and accepts multimedia content, allow...