nimbus-eth2/scripts/run-catalyst.sh

#!/usr/bin/env bash
# set -Eeuo pipefail

# https://notes.ethereum.org/@9AeMAlpyQYaAAyuj47BzRw/rkwW3ceVY

# To increase verbosity: debug.verbosity(4)
# MetaMask seed phrase for address with balance is:
# lecture manual soon title cloth uncle gesture cereal common fruit tooth crater

GENESISJSON=$(mktemp)
GETHDATADIR=$(mktemp -d)

echo \{\
	\"config\": \{\
		\"chainId\":1,\
		\"homesteadBlock\":0,\
		\"daoForkBlock\":0,\
		\"daoForkSupport\":true,\
		\"eip150Block\":0,\
		\"eip155Block\":0,\
		\"eip158Block\":0,\
		\"byzantiumBlock\":0,\
		\"constantinopleBlock\":0,\
		\"petersburgBlock\":0,\
		\"istanbulBlock\":0,\
		\"muirGlacierBlock\":0,\
		\"berlinBlock\":0,\
		\"londonBlock\":0,\
		\"clique\": \{\
			\"period\": 5,\
			\"epoch\": 30000\
		\},\
		\"terminalTotalDifficulty\":0\
	\},\
	\"nonce\":\"0x42\",\
	\"timestamp\":\"0x0\",\
	\"extraData\":\"0x0000000000000000000000000000000000000000000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\",\
	\"gasLimit\":\"0x989680\",\
	\"difficulty\":\"0x400000000\",\
	\"mixHash\":\"0x0000000000000000000000000000000000000000000000000000000000000000\",\
	\"coinbase\":\"0x0000000000000000000000000000000000000000\",\
	\"alloc\":\{\
		\"0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b\":\{\"balance\":\"0x6d6172697573766477000000\"\} \
	\},\
	\"number\":\"0x0\",\
	\"gasUsed\":\"0x0\",\
	\"parentHash\":\"0x0000000000000000000000000000000000000000000000000000000000000000\",\
	\"baseFeePerGas\":\"0x7\"\
\} > ${GENESISJSON}

~/execution_clients/go-ethereum/build/bin/geth --catalyst --http --ws -http.api "engine" --datadir ${GETHDATADIR} init ${GENESISJSON}
~/execution_clients/go-ethereum/build/bin/geth --catalyst --http --ws -http.api "engine" --nodiscover --miner.etherbase 0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b --datadir ${GETHDATADIR} console