Launching the Local Relay Chain

Magnet need a proper Substrate development environment to start. If you need a refresher setting up your Substrate environment, see Substrate's Getting Started Guide.

Using the custom-spec-raw.json file provided by substrate.

1. Build the relay chain node

Clone the most recent release branch of the Polkadot repository to prepare a stable working environment.

git clone --branch release-v1.1.0 https://github.com/paritytech/polkadot-sdk.git

Change to the root of the polkadot directory by running the following command:

cd polkadot

Build the relay chain node by running the following command:

cargo build --release

Compiling the node can take 15 to 60 minuets to complete.

Verify the node built correctly by running the following command:

./target/release/polkadot --help

If command-line help is displayed, the node is ready to configure.

1. Create the First Node

nohup ./target/release/polkadot --alice --validator --chain custom-spec-raw.json --port 30333 --rpc-port 9944  --rpc-cors all --unsafe-rpc-external >alice.log 2>&1 &

1. Create the Second Node

nohup ./target/release/polkadot --bob --validator --chain custom-spec-raw.json --port 30334 --rpc-