Valentin Cassarino

Hey there *waves*

I'm an economist turned design engineer based in Argentina.

Currently working at Yakoa, powering the best IP protection for the blockchain. My work at Yakoa is pretty straightforward: translate complex interactions to simple user experiences and bring them to life. Before that, I led the front-end team at Selehann.

In my free time I enjoy going to the gym and reading (lots of reading). If you're into high-fantasy books just like me, I can't recommend Brandon Sanderson more.

~/ playground

NFT Contract Preview

Interactive preview animation for an NFT collection showcase

Certified Viral

8 items

Instagram Recording

Web recreation of Instagram's iconic recording animation interface

Press and hold to record

OTP Verification

Animated OTP code verification with smooth micro-interactions

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Prompt Command

Interactive command-line interface for prompt execution

Only available on desktop devices

~/ live projects

Feedhub

An issue tracker tool I made to showcase the capabilities of TanStack Start. It's using everyone's favorite tools, like Tailwind, Drizzle, Supabase, better-auth, and Base UI for the primitive components.

Feedhub

Invoice Generator

I was looking for a way to generate invoices easily back when I was freelancing. I found that most of the tools were either too expensive or too complicated to use. So I made my own.

Invoice Generator

SupaExams

Wanted to challenge myself to build a product from scratch in just one week. SupaExams is the result of that. It includes database handling, custom design system, authentication, payments, background jobs, OCR, emails and AI-related features with the AI SDK.

SupaExams

~/ exploration

Ciro

Turn the internet into clips

Highway

AI-native marketing intelligence

OpenCut

The open-source video editor

Yakoa

IP protection for the blockchain

~/ say hi

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