- [[{4.1b2a} obsidian is a local-first notetaking app]] - **folders** → your vault is just a folder on your machine; files can live in the root folder, or you can create as many subfolders if you want. - **links** → use `[[]]` to link to other files in your vault. - **tags** → use `#` to apply tags across your vault. - all of these methods can be used to filter, find, and connect notes via core plugins like bases or graph view, and community plugins like dataview or notebook navigator. - when discussing [[{4.1b3} hierarchy vs network in knowledge management and data organization]], people tend to have strong opinions over which is / are best in obsidian for longevity and ease of use. - my preference is to use all three: a core group of folders and dense linking, with tags generally reserved for status markers. see [[{0.3} how i use obsidian]]. - see also [[{4.1a2} indexing notes with folgezettel]]