0002. App routing: / enters /app, landing at /home

• Status: Accepted
• Date: 2026-10-09
• Deciders: tseka

Context

kcq.nebutra.com serves a single-page preview (packages/vue/preview/App.vue) with no router. A marketing landing page is required.

Decision

Follow the Vercel pattern: the product is the front door.

• / redirects to /app (the trading workspace).
• /app is the workspace.
• /home is the landing page (bilingual, SEO-indexed, prerendered).
• Router: vue-router. /home is code-split so the workspace bundle doesn't ship landing/shader code, and vice versa.
• nginx keeps the SPA fallback; /home gets prerendered HTML for crawlers and OG.

Consequences

• Deep links and shared workspace URLs live under /app.
• Canonical URL for SEO is /home; /app is noindex.

Where it is implemented

kcq.nebutra.com is served by nebutra-sailor apps/kcq, which wraps this repo's source. The router and landing are built there; see Sailor ADR 2026-10-09 kcq product surface. This repo's preview/ remains the library demo.