Ives van Hoorne

Friends call me Flip!

Cofounder @biscuit_so
prev cofounder @codesandbox (acquired by @togethercompute).

I like biscuits 🍪🏳️‍🌈

[Ives van Hoorne @CompuIves]

I'm excited to finally share what we've been working on!

For the last 8 months, we've been building Biscuit: an all-in-one platform for building a business. Product, payments, emails, hosting and operations built in.

Today we're opening the waitlist 🎉

[Christian Alfoni @christianalfoni]

Agents explain things in walls of text. 📃

You ask how a system works, how a bug happens, or what a plan looks like, and you get twelve paragraphs back.

So I built https://t.co/QpbIAZ03rQ. Your agent draws what it’s explaining instead: https://t.co/6y0BTOsuep

[Biscuit @Biscuit_so]

Say hello to Brand Studio in Biscuit 🎉

You describe your idea, then pick a name and a logo. After that we build three complete design directions and you choose one.

The fun part is how different they come out. A landing page for popup store waitlists got back a loud orange market stall, and a quiet editorial page with a serif and one photo. Same prompt, same product.

Before you commit you can shuffle the layout, swap the colors, ask for a similar style or just hit "surprise me".

Then whichever one you pick becomes the direction every other screen gets built from.

Try now → https://t.co/xpxCURdIZv

[Ives van Hoorne @CompuIves]

@siddharthkp @Vjeux Yeah it starts to look like that, right? 😂

[Ives van Hoorne @CompuIves]

With Biscuit we have a durable execution system where we run the agent harness in the browser, and hand it over to a server when the browser tab closes.

Now someone talked to Biscuit in Slack, and since I had the project open, my browser tab ran the agent harness and answered 😂

[Ives van Hoorne @CompuIves]

A nice side effect is that all our logic runs on spot instances now, because it is built with the assumption that it can crash at any time (since browsers literally "crash" at any time when the user closes their tab).

[siddharth ☻ @siddharthkp]

🍥 tiny exploration

how "design mode" with AI should work

[Ives van Hoorne @CompuIves]

@antonosika Congrats Anton & Fabian!!

[Koen Bok @koenbok]

Excited about https://t.co/gso2OjDbyq the first great agentic email app, that looks fantastic.

DM @krijnrijshouwer for early access

[Ives van Hoorne @CompuIves]

@ggsimm Deal!

[Ives van Hoorne @CompuIves]

Working on the fun animations as we're starting to gear up for launch at Biscuit! 😄

[Ives van Hoorne @CompuIves]

@ggsimm I've been calling them little monsters because of you! 😂

[Ives van Hoorne @CompuIves]

We now simulate TIME(!) in our tests in Biscuit. Our QA agents and integration tests will make this work automatically.

[Floris Weers @FlorisWeers]

I never have to wait to test a time-based app again...
Traveling time is supported in our automatic end to end tester!

Can't wait to see what crazy time-based apps it will need to test from users...

[Ives van Hoorne @CompuIves]

@calcsam Yes! We're going to do a public launch very soon!!

[Ives van Hoorne @CompuIves]

In Biscuit you get this for free!

[swyx @swyx]

btw if you havent set your {codex | claude | gemini | devin} automations to autoresearch how to improve your seo/aeo every week you are really truly missing out on free, should-be-commoditizing-but-weirdly-untapped alpha

[Amin Khorrami @khorrami_amin]

I've always wanted a tool that gives me inspirations for the hero of a landing page and let me iterate easily. And be fast. like really fast! So I am building one! You describe what you want, it generates a hero with image, typography, layout, all composed together in a few different aesthetic directions. Then you iterate: swap fonts, adjust colors, regenerate the image, whatever you need.

[Ives van Hoorne @CompuIves]

@1Umairshaikh @aryanlabde We run evals on the different areas (design, data modeling, logic) and choose the best model based on that. Right now it's a combination of Sonnet/Opus/Fable, GPT 5.5, Kimi 2.7, Haiku and GLM 5.2. Here's more info on how we evaluate: https://t.co/YOSAtw2UoS

[Ives van Hoorne @CompuIves]

Worked for a loooong time on a huge update for Biscuit, and shipped it yesterday. This is the kind of feedback that then makes my day 😄

[Amin Khorrami @khorrami_amin]

Let's just say @linear wanted a public roadmap product for startups (let's just say that!), they could've shipped it in @Biscuit_so in minutes

[Ives van Hoorne @CompuIves]

The great thing about the Slack UX is that it's simple by default: just a chat.

But then you can thread into messages, which adds a horizontal layer which is great for agents.

In Biscuit the chat is more like a task with threads, but I'm tempted to make it more like Slack.

[shadcn @shadcn]

@ryanvogel Slack is close to being the perfect UI for most apps. I’m betting that most user interfaces, even IDEs, will eventually converge toward a Slack-like design.