4KM 4KM .ai
4km.co

🗂️

Mnemosyne

A private knowledge vault for notes, decisions, and working memory.

Building

  • Local-first knowledge vault
  • Notes, decisions, project context, and personal operating memory
  • Retrieval without turning private material into a feed

Why this exists

  • Generic notes apps collect everything and make retrieval your problem.
  • Chat apps can reason, but they forget your context between sessions.
  • Mnemosyne gives memory structure.

What’s in version one

  • Inbox for notes, links, decisions, and project context
  • AI-assisted summaries and tags with a private-by-default posture
  • Views for people, projects, and decisions that need to stay findable
← All apps