Building at XRPL Commons · Paris

I work on the part of on-chain systems where being approximately right is expensive: risk models, execution engines, and the interfaces that make both legible to a human under time pressure.

🌒 Umbra — an autonomous financial circuit breaker for DeFi A quantitative risk index (CBRI) built from tick-level Uniswap v3 data, and an on-chain evacuation that fires before liquidity evaporates. Backtested on the 48,066 real swaps of the March 2023 USDC depeg ($5.57B of volume): the breaker exits 17h before the bottom, with USDC still at $1.0000 — $126.9k saved on a $1M position, versus 657 bps of slippage for waiting until confirmation. Python (model + backtest) · TypeScript (QuoterV2/SwapRouter02 execution) · The Graph · 0G attestations · 29 tests → live demo · risk terminal · research paper · ETH Global Lisbon 2026

🟢 MOLEHUNT — on-chain social deduction, played through a trading terminal Every round, one wallet is secretly the insider. Everyone trades the same token; you have to read who is acting on information they shouldn't have — and accuse them before the timer runs out. Confidential state handled on COTI v2. Next.js 16 · React 19 · Solidity + OpenZeppelin · ethers v6 · a design system built from scratch (emerald-on-black, OKLCH tokens, CSS/SVG animation, no animation library) → live demo

🏥 MediFi — medical bills paid in installments, hospitals settled instantly Patients repay interest-free over time, hospitals are paid in full on day one by a liquidity-provider layer, and borrowing eligibility is gated by zero-knowledge proofs. Built on XRPL.

🏎️ Oracle Racer — crypto assets race each other on live prices A multiplayer on-chain race settled entirely by RedStone pull oracles, with only 2 price reads per race. → live demo

🚚 Tournée Futée — delivery-route optimisation in C# Little's algorithm (branch-and-bound TSP) over a custom graph and matrix layer, with SQL persistence and a unit-test suite. Where I learned that the algorithm is the easy part.

Talking about it on X / @nada_amd9.