Juno

Juno is a social app where every post is a market. Post a photo or a reel and it launches its own token and bonding curve on Arbitrum in one transaction. Early fans buy in on the curve, and the creator earns a share of every trade's fee. When a curve fills, it graduates into a Uniswap v3 pool, and its liquidity is locked forever.

The same curves power stock trackers (TSLA, NVDA, AAPL) priced in USDC. On every buy the contract reads the stock's Chainlink price and refuses any trade that would push the curve more than 1% away from it. If the feed is stale, only sells are allowed.

The pricing engine is a Rust program on Arbitrum Stylus. It matched a Solidity reference on 720 of 720 live calls, and the deployed code rebuilds byte for byte from the repo. Sign-in is by email through Privy embedded wallets, with no seed phrase. Juno runs on iOS, Android and the web.

Started 28 Sep 2026 and built the Arbitrum version from scratch during the buildathon:

• Solidity factory, curve and token contracts, plus the Stylus CurveMath engine

• Chainlink price band and Uniswap v3 graduation

• Next.js API and indexer, and Privy EVM wallets in the app

• Deployed and verified on Arbitrum Sepolia, with 12 live markets seeded and two graduations to Uniswap done on chain

• 31 Foundry tests on an Arbitrum One fork, plus invariant tests over 8,192 random trades

• Android APK and iOS builds (release v0.2.1), and a demo film recorded with real Sepolia transactions

Not raised; bootstrapped.