optimism-devnet

Kurtosis-based devnet for Optimism development.

Requirements

• kurtosis: 1.15.2

Supported Versions

• op-node: v1.16.10 or later

Usage

Setup

Clone the Optimism repository and initialize dependencies:

make chain

To use a specific version:

OP_TAG=op-node/v1.16.11 make chain

Start Devnet

make devnet-up

To use specific client versions:

GETH_VERSION=v1.17.3 LODESTAR_VERSION=v1.43.0 make devnet-up

Default versions:

• geth: v1.17.3
• lodestar: v1.41.1

Stop Devnet

make devnet-down

Configuration

Hardfork Timestamps

To modify hardfork timestamps, edit the following files:

• devnet/kurtosis-devnet/simple.yaml - L1/L2 network parameters (e.g., fulu_fork_epoch, fjord_time_offset, granite_time_offset, etc.)
• op-service/eth/config.go - L1 chain config for devnet (e.g., PragueTime, OsakaTime, etc.)