Convert personal knowledge files to faithful EPUB3 books, with installable Agent Skills support.

Tiny, dependency-free, browser-only runtime helper for RaisinDB MCP-UI widgets. Runs inside the widget iframe and abstracts over the ext-apps and MCP-UI host bridges.

Embed YouTube videos with a static placeholder which only embeds when you click

A bare bones module for including files in other files.

Client SDK for building presik quiz widgets — interactive question front-ends that report an answer to the quiz over postMessage.

Shell runtime — relay bridge, ACL enforcement, signer proxy, storage proxy for hosting napplet iframe applications

Mail — Inbox, Triage, All, Drafts over the production mail schema. No-build iframe pkg; deterministic CSS vendoring build.

Capture a running Next.js app and bundle it into one self-contained, offline HTML file.

Drop-in sandbox component that executes AI-generated React code with zero configuration.

Flexible runtime environment for data visualization sandboxes

TypeScript library to parse and preview Outlook .msg files. No DOM required.

Build a Flutter Web app into a ui:// MCP App component (loader HTML + cached assets).

Sandbox descriptor helpers for Momentarise Markdown Editor HTML artifact previews.

The block editor for the Author UI

Iframes that size themselves to their content, cross-origin included. No build step, no dependencies.

把会话内联可视化能力移植进 DeepSeek Harness：render_visual 把 SVG/HTML 源码渲染成会话流内联卡片，get_visualizer_spec 提供统一渲染规范。

Research — Reports (list+detail), Sources (monitored register), Personas (ICP grid) over the research_notes + research_sources schema. Multi-file iframe pkg; deterministic CSS vendoring build.

*This was developed for the Untitled NFT Hackaton while working on a safe and hopefully in the future standard way to create Interactive NFTs.*

Paja local authoring workshop for hosting napplets in a real Kehto iframe during development

Add interactive code demos to an Eleventy site with iframes