# Noternism: The Modernist Note Architecture
> High-performance, local-first knowledge architecture for macOS and iOS inspired by Nordic Organic Modernism (Alvar Aalto & Artek).

## Overview
Noternism (https://noternism.com) is an ultra-high-performance note-taking and knowledge graph platform built with Swift 6, AppKit, and SwiftUI. It combines 100% plain Markdown data sovereignty, non-destructive Obsidian vault interoperability, intent-driven polymorphic note schemas, an AuDHD-tailored "What To Do Today" task matrix, sub-10ms hybrid semantic vector search, and client-side zero-knowledge encrypted web sharing.

## Core Features & Concepts
- [Data Sovereignty](https://noternism.com/#architecture): 100% plain UTF-8 Markdown (.md) storage with YAML frontmatter. Non-destructive .obsidian/ compatibility.
- [8 Polymorphic Note Types](https://noternism.com/#polymorphic): Note, Project, Task, Journal, Meeting, Library, Snippet, Canvas with 1-click Type Promotion HUD (Cmd + Shift + P).
- [AuDHD Focus Deck](https://noternism.com/#tasks): "What To Do Today" card deck, diurnal 3-phase flow (@morning, @afternoon, @evening), energy matching (@quickwin, @routine, @deepflow), and zero-shame rollover.
- [Hybrid Vector Search](https://noternism.com/#search): SQLite FTS5 full-text indexing + on-device 512-dim Float32 vector embeddings fused via Reciprocal Rank Fusion (RRF).
- [Web Clipper & Media Cache](https://noternism.com/#clipper): Full GitHub, YouTube transcripts, ArXiv, and Recipe extractors with local asset caching in assets/.
- [Zero-Knowledge Web Sharing](https://noternism.com/#share): AES-256-GCM encrypted notes with secret key placed exclusively in URL fragment (#key=...).
- [Document Time-Machine](https://noternism.com/#versions): Point-in-time version history snapshots, Myers line diffing, and 30-day soft trash retention.

## Documentation & Full Context
- [Full LLM Documentation](https://noternism.com/llms-full.txt): Comprehensive technical specifications, schemas, YAML formats, and keyboard shortcuts.
- [Official Website](https://noternism.com): Marketing homepage, downloads, and interactive showcases.
- [Privacy Policy](https://noternism.com/privacy): 100% offline-first privacy statement.