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Matt Rossman

@mattrossman.com

AI Tooling @supabase.com Writing: mattrossman.com I build web applications with emerging tech. Geeked about @effect-ts.bsky.social

69 Posts96 Follower265 Folgt
Matt Rossman@mattrossman.com · last yr.

Delighted to share that I’ve joined @supabase.com to work on AI tools! Open source has taught me so much, so it’s a privilege to now contribute full-time in this space. Excited to help make this excellent developer platform even better!

Matt stands in front of a wall of greenery wearing a black hoodie with Supabase branding atop a green T-shirt, and a black ball cap with the Supabase logo.
Eric Migicovsky@ericmigi.com · last yr.

We're really proud to show off the final design for Pebble Time 2*! It's quite a bit sleeker and imo more awesome looking than the original design for Core Time 2 we showed off in March. I hope you like it!

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Rob Palmer@robpalmer.bsky.social · last yr.

ECMAScript excitement 😉 Congrats to @bakkot.com on advancing UInt8Array ↔️ Base64/Hex to Stage 4 at TC39 this week 🎉 UInt8Array.prototype. toBase64 toHex UInt8Array. fromBase64 fromHex It lets you convert directly between binary data and Base64/Hex strings 👍

let arr = new Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100]); console.log(arr.toBase64()); // 'SGVsbG8gV29ybGQ=' console.log(arr.toHex()); // '48656c6c6f20576f726c64' let string = 'SGVsbG8gV29ybGQ='; console.log(Uint8Array.fromBase64(string)); // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100]) string = '48656c6c6f20576f726c64'; console.log(Uint8Array.fromHex(string)); // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100])
Matt Rossman@mattrossman.com · last yr.

I like to put `ignore/` in .gitignore for most projects I work on. When I want to create an untracked file (e.g. private notes, large static asset for dev) I can toss it in an `ignore/` folder anywhere. Wish something like this came in more starter templates! #git

Matt Rossman@mattrossman.com · last yr.

I was going nuts trying to figure out why Cloudflare logs for my MCP server were showing requests every 5 minutes from my location. Turns out Claude Desktop was the culprit, even though I closed the app and removed the MCP server config it left an `mcp-remote` process running in the background 🙃

Matt Rossman@mattrossman.com · last yr.

Building an MCP server with @cloudflare-dev.bsky.social agents SDK. It's an interesting mental shift writing an API where do you don't have to worry so much about the shape of your response. E.g. for a Bluesky tool I can neatly format feed data or dump it as-is, the model makes sense of it.

VIVERSE Official@viverse.com · last yr.

🚀 All week, we’re sharing powerful voices from the VIVERSE stage at GDC 2025. Today, meet @jamesckane.bsky.social — a game dev pushing boundaries and redefining XR design with #VIVERSE. 🎥 Watch now: www.youtube.com/watch?v=un5ZZKupV-E #WebXR #JamesKane #VIVERSE #PlayCanvas

How James Kane Is Building XR Games Without Limits | VIVERSE @ GDC 2025

🎮 Don't just build games, build new realities. James Kane shares his journey into VIVERSE and WebXR, developing immersive games with PlayCanvas and pushing creative boundaries in digital space. Learn how experimentation, freedom, and powerful tools enable new storytelling inside XR.

youtube.com

Matt Rossman@mattrossman.com · last yr.

Phone auto switched to Gemini Assistant. Not only was it incapable of basic things like setting reminders, it confidently told me it set a reminder when it in fact did nothing. The lack of hallucination prevention is strange... Glad I had the option to switch back.