Jackal Leung

DeFi Builder | Open Source Developer

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About Building next-gen trading infrastructure on Cardano. Co-founder at DeltaDeFi & SIDAN Lab Hong Kong

Tech Stack Backend Go | Rust | TypeScript | Ruby Frontend React | Next.js Blockchain Cardano | Hydra L2 Data PostgreSQL | Redis | QuestDB Infrastructure AWS | GCP | Kubernetes | Docker

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Organizations

Cardano Trading Infrastructure Instant order confirmation, zero-fee trading, API-first design powered by Hydra L2 Website | App | Docs

Cardano Developer Tooling Open-source libraries making blockchain development accessible to everyone Website | GitHub

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Open Source

The Cardano Bar — A complete toolkit for Cardano development

Library	Language	Description
Mesh	TypeScript	Web3 SDK for Cardano
Whisky	Rust	Transaction building & serialization
Vodka	Aiken	Smart contract utilities & testing
Rum	Go	Golang Cardano library
Gin	Python	Python Cardano library
Cardano Bar	Multi	Cross-framework dev tools

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Stats

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Connect

"Open source is not just about code — it's about building communities."