Fukuii
RecommendedScalaEthereum execution layer client in Scala 3 — native Proof-of-Work consensus for Ethereum Classic and Mordor, plus Engine API V1–V4 for post-Merge Ethereum. Pairs with Lighthouse, Prysm, Teku, Lodestar, or Nimbus to run Sepolia and ETH mainnet. One binary, four networks. The primary ETC client for the Olympia era.
Features
- SNAP, fast, and regular sync for ETC and Mordor
- ETC mainnet, Mordor testnet, ETH mainnet, and Sepolia testnet
- Compatible with all major consensus clients
- Signed Docker images on GHCR
- JSON-RPC, Engine API, and MCP support
Quick Start
Install
docker pull ghcr.io/chippr-robotics/fukuii:latestConfiguration
Use network=etc for mainnet, network=mordor for testnet, network=sepolia for Engine API.
ETC Compatibility Plugins
Planned for release after Olympia activation. These compatibility layers bring Ethereum Classic support to major upstream EVM clients without maintaining full forks. Enables enterprise deployments, archive nodes, and cross-chain infrastructure on any preferred execution environment.
Hyperledger Besu
Enterprise-grade EVM client from the Hyperledger Foundation. Apache 2.0 licensed. Planned ETC compatibility plugin for enterprise deployments and institutional infrastructure.
Erigon
Archive-optimized EVM client designed for minimal disk usage and fast historical queries. Preferred for analytics infrastructure and full-history nodes.
Go Ethereum
The upstream geth client. ETC compatibility layer maintains parity with the canonical Go Ethereum codebase for maximum tooling compatibility.
Nethermind
High-performance .NET EVM client. Enables ETC integration for the Microsoft and enterprise .NET ecosystem, with native Windows deployment support.