Configuration

Environment Variables

All frontend configuration is done through environment variables in a .env.local file at the project root. See Installation for the full variable reference.

Multi-Node Setup

The PQN is designed for two-node quantum experiments. To run two frontend instances simultaneously (one per node):

1. Start the first instance on the default port:

   npm run dev
   # Available at http://localhost:3000
   

2. Start the second instance on port 3001:

   PORT=3001 npm run dev
   # Available at http://localhost:3001
   

Each frontend instance should point to its corresponding Node API via NEXT_PUBLIC_API_ADDRESS. Use separate .env.local files (e.g., .env.locala and .env.localb) and load them manually, or configure the addresses at startup.

Note: The PQN currently supports exactly two nodes. Three or more nodes are not yet supported.