---
id: S02
parent: M009
milestone: M009
provides:
  - About page at /about with what/how/who sections
  - Footer navigation link to /about
requires:
  []
affects:
  []
key_files:
  - frontend/src/pages/About.tsx
  - frontend/src/App.tsx
  - frontend/src/components/AppFooter.tsx
  - frontend/src/App.css
key_decisions:
  - Used CSS counter-based numbered pipeline steps rather than manual numbering for the extraction pipeline section
patterns_established:
  - (none)
observability_surfaces:
  - none
drill_down_paths:
  - .gsd/milestones/M009/slices/S02/tasks/T01-SUMMARY.md
duration: ""
verification_result: passed
completed_at: 2026-03-31T05:42:31.536Z
blocker_discovered: false
---

# S02: About Page

**Added /about page with three content sections and a footer navigation link.**

## What Happened

Created About.tsx with three sections: what Chrysopedia is (purpose and name origin), how content is extracted (five-step pipeline breakdown using CSS counter-based numbered steps), and who maintains it (links to xpltd GitHub org and repo). Added the /about route in App.tsx. Added an About link in AppFooter.tsx using react-router-dom Link. Styled with .about-* classes in App.css following existing BEM and CSS custom property patterns, including a responsive breakpoint for the hero title. TypeScript compiles cleanly, Vite build produces 47 modules with no warnings.

## Verification

npx tsc --noEmit: exit 0, zero errors. npm run build: exit 0, 47 modules, no warnings. Route /about registered in App.tsx. Footer link present in AppFooter.tsx pointing to /about.

## Requirements Advanced

None.

## Requirements Validated

None.

## New Requirements Surfaced

None.

## Requirements Invalidated or Re-scoped

None.

## Deviations

None.

## Known Limitations

None.

## Follow-ups

None.

## Files Created/Modified

- `frontend/src/pages/About.tsx` — New page component with three content sections (what, how, who)
- `frontend/src/App.tsx` — Added /about route
- `frontend/src/components/AppFooter.tsx` — Added About link
- `frontend/src/App.css` — Added .about-* styles with responsive breakpoint
