ZKsync OS Server Developer Documentation
This book guides you through running, understanding, and extending the ZKsync OS Server.
Understanding the System
Deep dives into internal components and lifecycle.
Running the System
These guides help you set up and operate the server in different environments.
- Run against Layer 1 (L1) — Local dev chain and Sepolia testnet setup, environment variables, common pitfalls.
- Updating Contracts — Rebuilding and deploying custom contracts, migration flow, testing.