On-chain chit fund (rotating savings) platform on Stellar. 5 Soroban smart contracts in ~3.9K lines of Rust: group lifecycle, sealed bidding, identity, reputation, dispute resolution.
- 53 testnet users · real on-chain activity
- Black Belt, Stellar Journey to Mastery ($150 USDC)
- CI on every push · factory-pattern deployment
rust · soroban · next.js · typescript
Trustless sealed-bid reverse auctions for B2B/GovTech procurement on the Midnight blockchain. Bids stay confidential end-to-end — the chain verifies validity without ever seeing a number.
- 4 ZK circuits: create · commit · reveal · finalize
- Compact smart contracts, live on Midnight Preprod
- Vitest contract tests gated in CI
zk-proofs · compact · midnight · next.js
Cross-platform inventory system — Android, iOS, desktop, web from one shared Kotlin codebase. Officially adopted by IIIT Naya Raipur to manage institute-wide inventory.
- 43 releases through automated build-and-sign CI
- Offline-first (SQLDelight) · JWT + role-based access
- Nightly DB backups · concurrency-safe stock updates
kotlin multiplatform · fastify · postgres
Decentralized escrow on Stellar with built-in arbitration and fee sponsorship — trustless buyer/seller transactions with contract-level timeout enforcement.
- Level 5, Stellar Journey to Mastery ($100 USDC)
- Escrow + arbitration contracts · CI/CD
soroban · react · typescript
MARL Fleet Rebalancing (research)
Measurement study: how do frozen RL fleet-rebalancing policies degrade when deployment demand differs from training demand? 62 NYC zones, real ride-hail demand, IPPO vs MAPPO vs tuned LP baselines.
- Parameterized demand-shift scenario matrix (S0–S6)
- Reproducible train/eval pipelines + test suite
python · pettingzoo · reinforcement learning
Voice-controlled AI shell agent: natural language → validated system commands via Gemini, with security checks against malicious execution and graceful API-failure recovery.
- Cross-platform (Linux, macOS, Windows)
- Documented REST API (Swagger)
python · fastapi · llm