MattCool.tech

Explore the Jetson Orin Nano in 3D, with interactive parts and AR/VR on supported devices.

Procedural monarch butterflies follow your cursor, then settle into a little cluster of folded wings.

Building an agentic doorbell with local edge AI and Google Cloud that respects privacy while delivering intelligence

An interactive 2.6 billion parameter agent that runs in the browser with Transformers.js, WebGPU, and a small sandbox of browser tools.

What changed in this site's move from Astro 3 to Astro 7, and what I expect it to improve.

A satirical landing page hides a gnome-run conversion factory underneath its polished interface, built with Astro, GSAP, and webflow for a CodeTV hackathon.

A WebGL fluid experiment that turns cursor movement, clicks, and loops into temporary neon color.

A small experiment that grows temporary ivy and trees from cursor gestures.

Discord is a powerful tool for community building and collaboration.

Notes on the most useful ways I am using Codex in my current workflow.

A small feature for switching select posts into Mandarin.

A web-based language simulator prototype built with World Labs, Spark.js, and Gemini to practice real spoken tasks in a Taiwanese boba shop.

Building a local AI agent for the Monterey Bay Tech Meetup Discord community

I migrated my community group off of Meetup.com and built a new website for it using Discord as a CMS.

Built a game to get familiar with GTC San Jose 2026

Use your hand as a magic wand to create falling snow!

Three years of creating goofy family Christmas e-cards with consumer generative AI tools.

Writing an effective readme is one of the best low-lift things you can do to support the growth and health of your open source project.

a small demo using NVIDIA's NIM service to help me study Chinese

Prepare to be blown away by how good these web portfolios are

August 2025 granted me the opportunity to revisit my web aquarium project with a three.js hackathon.

Open source designs from Firefox

Here are some of my favorite extensions and features in Firefox.

built a web app that lets you study Chinese without taps or swipes

Internet service duopolies going door to door?

Exploring the Sleep Token Discord Server

My first attempts at setting up Home Assistant and Ollama for private, voice assistants

Students at CSU Monterey Bay, supported by Mozilla mentors, delivered impressive capstone projects exploring cutting-edge topics like local AI, private machine learning, and open web technologies.

List of some excellent chill games to try

Running ONNX models directly in the browser, converting text to speech through a sophisticated transformer-based neural network architecture

Welcoming a new baby to the family

the Twitter/X account mattbcool is no longer owned by me

Key tips to share with teams hosting events in Discord

My notes on event hosting sites to try

community naming when working with brands that stewart them

IndieWeb is a community of web creators who build and share their own websites.

Is Discord a good place for emergent tech?

I went to github universe 2024

A list of Community Podcasts that you can check out

experiment running Llamafile on Raspberry Pi 5

first passes at prototyping card interactions for buildspace s5 nights and weekends

How can you make the most out of your server's built in events calendar and empower members to get together in a scalable way?

Learning through a participants eyes to step up my community programming game with build space.

decided to challenge myself to create more in my free time

Quick walk through for managing events in Discord

App stores deliver a ton of value to developers but there are many circumstances where they fail to serve the needs of people and technologist.

Notes on my experience at Wordcamp Asia 2024