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Opera25 things made

Projects

What I’ve built, newest first.

Piranesi's title plate for the Views of Rome: a great stone slab cut with the title in Roman capitals, behind an urn and overgrown ruins.

G. B. PiranesiVedute di Roma1748

The title plate, signed architetto veneziano.

LiberI

Products

Things that left the workshop and stayed out: live, with real people using them.

VIIentries

Number VII

Leancrete

Concrete mix design optimisation with applied machine learning. Next.js frontend, Python FastAPI backend with Celery and PostgreSQL. I own it end to end, and it is in active development.

  • Machine learning
  • Fullstack
  • Python

Visit Leancrete

Number VI

Imagine

Image, video and music generation in one web app, built with atxp.ai. I owned the frontend and the AI integration with its model providers.

  • Generative AI
  • Fullstack

Visit Imagine

Number V

Alphie

An AI assistant that lives in group chats, surfacing and copying trades in real time. Built end to end: Next.js frontend, Node.js backend with job queues, OpenAI.

  • AI
  • Chat agent
  • Fullstack

Visit Alphie

Number III

Impossibl

A weekly impossible game with a prize pool, played inside mini apps. Next.js 16, React 19, Drizzle and Turso.

  • Game
  • Fullstack

Visit Impossibl

Number I

UFO

Open Internet Radio. Listen and broadcast music together

  • Web
  • Music

Visit UFO

LiberII

Hackathons

Forty-eight hours each, with a few friends and a deadline.

XVIentries

2025

Number XVI

Impossibl.fun

ETHGlobal Buenos Aires 2025Buenos Aires

Prize winner

Impossibl.fun is your weekly dose of impossible games with a prize pool on WorldCoin. Compete in fun and challenging games, win WorldCoin and have fun with the community!

  • Game
  • World
  • XMTP

Visit Impossibl.funWatch Impossibl.fun

Number XIV

Spoticast

Farcon NYC 2025New York

Prize winner

Developed a Farcaster miniapp to share what you're listening to on Spotify to your farcaster followers.

  • Farcaster
  • Privy
  • Social

Source Spoticast

2024

Number XIII

AskBrian

Brian AI Winter is ComingOnline

Prize winner

Developed a Farcaster bot that allows you to do onchain actions from a Frame just using natural language with BrianKnows AI toolkit.

  • BrianKnows
  • Farcaster
  • AI

Source AskBrian

Number XII

Segugio

ETHGlobal Bangkok 2024Bangkok

Prize winner

Developed a XMTP bot along with BrianKnows langchain toolkit to deploy copy-trading bots using NLP. Automatically copy the trades of any user without stress.

  • 1inch
  • XMTP
  • BrianKnows
  • Blockscout

Visit SegugioSource SegugioWatch Segugio

Number XI

NaaamoFit

ETHRome 2024Rome

Prize winner

Accept crypto payments for your gym subscriptions and reward your best clients using Naaamofit. Privy and Pimlico for Account Abstraction and Txs bundling. Superfluid to stream rewards to your clients.

  • Superfluid
  • Pimlico
  • Privy

Visit NaaamoFitSource NaaamoFitWatch NaaamoFit

Number X

Milionario

ETHOnline 2024Online

Prize winner

Try your 1 in 1 million chance to win the growing prize pool! Simply beat the bot 13x in a row in rock paper scissors to claim your prize. Made with Farcaster OpenFrames, Chainlink VRF for randomness and Web3auth for authentication.

  • XMTP
  • Chainlink
  • Web3auth

Visit MilionarioSource MilionarioWatch Milionario

Number IX

SnappyAI

ETHGlobal Brussels 2024Brussels

Prize winner

SnappyAI prompt your way to web3 inside of MetaMask, using Brian AI. Developed a custom v4 hook to discount snappyAi user in PancakeSwap LPs. Winner with Metamask Snap and Blockscout.

  • Metamask
  • Brian
  • PancakeSwap

Visit SnappyAISource SnappyAIWatch SnappyAI

Number V

Resolvia

EAS FellowshipOnline

Prize winner

Supercharge your EAS attestations in a secure way! Resolvers marketplace for Ethereum Attestation Service. Selected for the EAS 2024 Fellowship.

  • EAS
  • Ethereum
  • Resolvers

Visit Resolvia

2023

Number III

N-Hub

ETHGlobal Istanbul 2023Istanbul

Prize winner

Frontend Dev for prize winner N-Hub, Simplify Developer eXperience to create cross-chain attestations with notifications. Winner with Metamask, Chainlink and WalletConnect

  • EAS
  • Metamask
  • Chainlink
  • WalletConnect

Visit N-HubSource N-HubWatch N-Hub

Number I

Sismord

ETHDam 2023Amsterdam

Prize winner

Built the Frontend in React for Sismord: Gated access to Discord servers leveraging blockchain and Sismo data vaults. Winner of Best data aggregation with Sismo @ETHDam 2023

  • Sismo

Visit Sismord

LiberIII

Curiosities

Made for no one in particular, to find out how something works underneath.

IIIentries

Explicit

Here the catalogue ends,
for now.