Writing and reading
CodeMirror 6, live preview, slash commands, search, focus, presentation, and navigation between linked documents.
Case study / Markdown writing
A local-first space to write, organize documents, and review Markdown live. markEDdown brings editor, explorer, reading, and export together without requiring an account.

REAL INTERFACE / DESKTOP
01 / Overview
CodeMirror 6, live preview, slash commands, search, focus, presentation, and navigation between linked documents.
Local explorer with folders, favorites, recents, archive, trash, history, assets, and an inspector.
Download Markdown, export HTML and ZIP assets, copy Markdown/HTML, and send a note to NEXUS OS on Android.
02 / The problem
03 / The approach
The interface connects editor, preview, and local library. A document graph links notes, while the command palette, inspector, and export tools stay within reach.
04 / Real screenshots · desktop 1280 × 720







markEDdown → NEXUS OS / Android
Choose Enviar a NexusOS in Exportar, or Herramientas → Exportar in mobile Pocket. Android opens its sharing sheet; NEXUS OS lets you review the title and Markdown before saving. Cancel discards the draft.
This is a one-time text copy, not synchronization. The original stays unchanged; browser-local images, categories, project assignments, and relationships are not transferred. A NEXUS OS build with the receiver is required; release 0.1.2 predates it. The flow was verified on a Tab S8 using an isolated QA app.
If Web Share is unavailable, download the .md file to keep it; the v1 receiver accepts shared text, not .md files. Native PDF export and full workspace backup remain outside the documented scope.
Explore NEXUS OS ↗05 / Product decisions
Editing and reading share the same workspace. Organization and inspection panels appear when needed, keeping documents in the browser and background artwork outside the editor content.
06 / Stack & privacy
Documents, preferences, and images are stored in browser localStorage. This storage is not encrypted: export copies to preserve your work.
07 / Explore