First, prepare rollup.json and genesis.json.
Then, follow the steps here to build op-node and op-geth, the only difference is: use the devnet branch of both optimism and op-geth instead.
Finally, setup op-node and op-geth following the steps below:
# assume optimism and op-geth repo are located at ./optimism and ./op-geth
cd op-geth
build/bin/geth init --datadir=datadir genesis.json
openssl rand -hex 32 > jwt.txt
# We don't specify `--rollup.sequencerhttp` since it's for testing blob archiver only.
# The rpc port is the default one: 8545.
./build/bin/geth --datadir ./datadir --http --http.corsdomain="*" --http.vhosts="*" --http.addr=0.0.0.0 --http.api=web3,debug,eth,txpool,net,engine --ws --ws.addr=0.0.0.0 --ws.port=8546 --ws.origins="*" --ws.api=debug,eth,txpool,net,engine --syncmode=full --gcmode=archive --nodiscover --maxpeers=0 --networkid=42069 --authrpc.vhosts="*" --authrpc.addr=0.0.0.0 --authrpc.port=8551 --authrpc.jwtsecret=./jwt.txt --rollup.disabletxpoolgossip=true --enablel2blob
cp jwt.txt ../optimism/op-node
cd ../optimism/op-node
export L1_RPC_KIND=basic
export L1_RPC_URL=http://88.99.30.186:8545
export L1_BEACON_URL=http://88.99.30.186:3500
# Ensure to replace --p2p.static with the sequencer's address.
# Note: p2p is enabled for unsafe block.
./bin/op-node --l2=http://localhost:8551 --l2.jwt-secret=./jwt.txt --verifier.l1-confs=4 --rollup.config=./rollup.json --rpc.addr=0.0.0.0 --rpc.port=8547 --p2p.static=/ip4/142.132.154.16/tcp/9003/p2p/16Uiu2HAmQJw155SKAPfzWoSahmFtvshdd8EKWGTJzZ51BLchZgGv --p2p.listen.ip=0.0.0.0 --p2p.listen.tcp=9003 --p2p.listen.udp=9003 --p2p.no-discovery --p2p.sync.onlyreqtostatic --rpc.enable-admin --l1=$L1_RPC_URL --l1.rpckind=$L1_RPC_KIND --l1.beacon=$L1_BEACON_URL --l1.beacon-archiver=http://65.108.236.27:9645