Running a node locally

Everything runs natively against a local chain. The services and their default ports:

Chain node

# release binary (built for the local target)
sequencer --db ./chain-data/ledger --rpc-port 8899

The node serves standard Solana RPC plus the pool/bridge extensions (RPC reference). getHealth should return ok.

Relayer

relayer --keypair ./relayer-keypair.json --min-fee 2000000 \
        --chain-rpc-port 8899 --port 8911

Generates and persists a keypair on first run (gitignored — it holds a secret). GET /info returns the relayer address and minimum fee; the app binds these into the proof.

Indexer

cd indexer && npm install && npm start   # reads node on 8899, serves 8921

With no DATABASE_URL, the indexer uses an embedded Postgres locally. Set DATABASE_URL (a Neon connection string) for production — the SQL is identical.

App & explorer

cd apps/app && npm install && npm run dev        # http://localhost:3010
cd apps/explorer && npm install && npm run dev    # http://localhost:3020

To point the app's SDK at the indexer instead of the node directly, set NEXT_PUBLIC_USE_INDEXER=1 (node-direct is the default).