WHAT YOU CAN BUILD

Capabilities

Human map of HostDocument website strengths. Live exhibits in Labs; measured claims on Performance; residual honesty on Matrix.

SEO multipage documents

Static HostDocument export with head IR, sitemap, JSON-LD — no client framework required for crawl.shippedRead boundary

SPA-class soft-nav

App shell permanence, outlet morph by stable ids, route-keyed focus + field-value continuity.shipped · morph + focus/value busSee measured

Solid-class Dom multi-commit

SetText / Insert / Remove / Move on stable ids — structural oracles + wall-clock planes.shipped · W-DOM-1Open Dom lab

Virtual lists

10k-class virtual window, freeze panes, infinite query, multi-query cache.shipped · W-LISTOpen List lab

Controlled forms

Form Port multi-commit, dialog stack, load/revalidate — not a product dual form tree.shipped · W-FORMOpen Forms lab

Streaming flight

SSR flight NDJSON + interactive hydrate policy; residual live QUIC/h3 soak.partial · residual h3Open Flight lab

Document edit

Markdown + contenteditable dual-pane via DocumentEditPort + DomPatch.shipped · dual-pane L0Open Playground

Multi-host destiny

Same View IR targets Dom websites and Paint/game hosts — not a web-only framework.engine path · site narrativeCompare stacks

A11y + CI floors

ARIA IR, axe multipage CI, contrast pairs; residual multi-origin playwright soak.partial · CI shippedSee residuals
How to read this mapshipped = live dogfood on this site. partial = engine IR/host present with named residual. Matrix is the engineer SSOT for exact residuals — this page is the builder narrative.