Analog index cards invite focus and embodied thinking; digital tools invite frictionless linking and search. Either can serve a Zettelkasten well. Consider your context: do you write on the go, collaborate, or rely on long-term archival? If you prefer tactile thinking, a box of cards may be ideal. If you need portability and backlinks, tools like Obsidian, Logseq, or org-roam excel. Start with what you will actually open daily, not what is theoretically perfect.
Unique identifiers prevent confusion and make linking predictable. Consider timestamp-based IDs, short hashes, or human-readable slugs paired with dates. Consistent naming helps your Zettelkasten grow without collisions, especially as your archive expands. Avoid cleverness that will confuse your future self. A simple pattern like 20260122-atomic-notes or a short alphanumeric ID keeps everything stable. The goal is predictable retrieval and effortless connection. When naming reduces hesitation, you will capture more ideas, link more often, and trust the system.
Overly elaborate folders often become work unto themselves. Instead, keep a minimal structure: an inbox for raw captures, a home for permanent notes, and a place for structure notes or maps. Let links, search, and backlinks do the heavy lifting. This reduces filing decisions and preserves momentum. Review periodically to archive stale scraps or promote promising drafts. Simplicity here is strategic; it frees mental energy for thinking, not organizing, and keeps your Zettelkasten breathing rather than ossifying.