sequencer is a blockchain used for sequencing Warp interactions.
For local development you can use the usual ignite chain serve or a preconfigured local network of 3 nodes started with:
# Start the network
make docker-run
# Verify 3 validators are running
curl http://localhost:1317/cosmos/staking/v1beta1/validators
# Check the status of each node
./bin/sequencer status
./bin/sequencer status --node tcp://localhost:26667
./bin/sequencer status --node tcp://localhost:26677