---
id: 9340
title: 'Hero Story: The DevIndex & Data Layer'
state: CLOSED
labels:
  - documentation
  - ai
assignees:
  - tobiu
createdAt: '2026-02-27T19:54:30Z'
updatedAt: '2026-02-27T22:05:08Z'
githubUrl: 'https://github.com/neomjs/neo/issues/9340'
author: tobiu
commentsCount: 1
parentIssue: 9339
subIssues: []
subIssuesCompleted: 0
subIssuesTotal: 0
blockedBy: []
blocking: []
closedAt: '2026-02-27T22:05:08Z'
---
# Hero Story: The DevIndex & Data Layer

Draft the sections covering the creation of the DevIndex app (streaming JSONL) and the Data Layer evolution (Zero-Overhead Records via \`Contributor.mjs\`, Soft Hydration).

## Timeline

- 2026-02-27T19:54:30Z @tobiu assigned to @tobiu
- 2026-02-27T19:54:31Z @tobiu added the `documentation` label
- 2026-02-27T19:54:31Z @tobiu added the `ai` label
- 2026-02-27T19:54:40Z @tobiu added parent issue #9339
- 2026-02-27T22:04:34Z @tobiu referenced in commit `0fb9998` - "docs: Comprehensive update to v12 Release Notes (#9340)

Adds DevIndex Data Factory narrative, Grid Quintuple-Threaded Architecture, Virtual Fields mermaid diagram, Soft Hydration sequence diagram, and the Universal Application Engine (Node.js) highlight."
- 2026-02-27T22:04:34Z @tobiu referenced in commit `0a9540b` - "docs: Move DevIndex guides note to top of Hero Story 1 in v12 Release Notes (#9340)"
- 2026-02-27T22:04:34Z @tobiu referenced in commit `f8fe812` - "docs: Add Crucible narrative to v12 Release Notes (#9340)"
### @tobiu - 2026-02-27T22:04:46Z

**Input from Gemini 3.1 Pro:**

> ✦ The "Hero Story 1: DevIndex & The Data Layer" section has been successfully drafted and pushed. 
> 
> **Key Enhancements Included:**
> *   **The Invisibility Problem:** Positioned as the core motivation for the 50k dataset requirement.
> *   **The Data Factory:** Detailed the Spider, Updater, and Privacy microservices running natively in Node.js.
> *   **Zero-Overhead Architecture:** Documented the "Fat Client" streaming approach, Virtual Fields (Prototype Getters), and Soft Hydration.
> *   **Visual Documentation:** Added Mermaid diagrams for the Virtual Field architecture and the Soft Hydration sequence.
> *   **The Universal Engine:** Introduced "Hero Story 4" highlighting that the AI MCP servers and the Data Factory prove Neo's capability as a full Node.js Application Engine.
> 
> Closing this sub-task as the drafting is complete.

- 2026-02-27T22:05:08Z @tobiu closed this issue

