# MattCool.tech

Community, Education, Culture, and the Web

MattCool.tech is Matt Cool's personal website and blog covering the spatial web, browser-based experiments, AI prototypes, community building, home automation, and open source.

## Main Resources

- [Blog posts](https://mattcool.tech/posts)
- [About](https://mattcool.tech/about)
- [Tags](https://mattcool.tech/tags)
- [RSS feed](https://mattcool.tech/rss.xml)
- [LLM overview](https://mattcool.tech/llms.txt)
- [Full content for LLMs](https://mattcool.tech/llms-full.txt)
- [API catalog](https://mattcool.tech/.well-known/api-catalog)

## Recent Posts

- [DGX Spark](https://mattcool.tech/posts/dgx-spark-3d) - Explore an exploded DGX Spark model in 3D, AR, and VR.
- [Cursor Sandcastles](https://mattcool.tech/posts/cursor-sandcastles) - A small 3D beach of wet sand you can build on while the tide comes in.
- [Transformers.js Dungeon Crawler](https://mattcool.tech/posts/transformersjs-dungeon-crawler) - An experiment in local AI: a text-based dungeon crawler using Transformers.js and structured JSON in the browser.
- [Testing Claude Opus Five Five: Revisiting the Web Aquarium](https://mattcool.tech/posts/testing-claude-opus-five-five-revisiting-the-web-aquarium) - A capability test: I asked Claude Opus 5.5 to review my web aquarium posts and build the 3D fish tank I was aiming for.
- [Cursor Sphere](https://mattcool.tech/posts/cursor-sphere) - A little rolling ball that picks up the letters in this post.
- [Jetson Orin Nano](https://mattcool.tech/posts/jetson-orin-nano-3d) - Explore the Jetson Orin Nano in 3D, with interactive parts and AR/VR on supported devices.
- [Cursor Monarchs](https://mattcool.tech/posts/cursor-monarchs) - Procedural monarch butterflies follow your cursor, then settle into a little cluster of folded wings.
- [Doorman: A Privacy-Focused Agentic Doorbell](https://mattcool.tech/posts/doorman-a-privacy-focused-agentic-doorbell) - Building an agentic doorbell with local edge AI and Google Cloud that respects privacy while delivering intelligence
- [Local WebGPU Agent Lab with Transformers.js](https://mattcool.tech/posts/local-webgpu-agents-transformers-js) - An interactive 2.6 billion parameter agent that runs in the browser with Transformers.js, WebGPU, and a small sandbox of browser tools.
- [Upgrading This Site to Astro 7](https://mattcool.tech/posts/upgrading-this-site-to-astro-7) - What changed in this site's move from Astro 3 to Astro 7, and what I expect it to improve.