Obsidian is a note taking & personal knowledge management (PKM) application that utilizes a folder-based, plaintext backend that lives on your computer. It uses Durable File Types and allows for no cloud-dependencies, and is therefore (theoretically) your “final destination” for PKM.
It’s goal is to give you a permanent, durable home for your body of notes. It’s a competitor to Notion in some ways - and will be what these notes are housed in eventually. It utilizes Markdown and YAML, and lets you embed local files into your notes. It’s got a robust plugin system and is incredibly highly configurable and modular. The aim is to keep it as lean as possible while giving you the tools to do anything.