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README.md

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+# Superbanka
+
+Server-rendered Go banking demo with PostgreSQL, internal account-number transfers, separate admin accounts, and ledger-backed balances.
+
+## Local development
+
+1. Create local config: `cp .env.example .env`
+2. Start PostgreSQL: `make up`
+3. Run the app: `make dev`
+
+The app listens on `http://localhost:8080` by default.
+Postgres is exposed on `localhost:5433` to avoid conflicts with any existing local instance.
+
+The app loads `.env` automatically on startup. Existing shell environment variables still take precedence over values in `.env`.
+
+Default bootstrap admin credentials:
+
+- Email: `admin@superbanka.local`
+- Password: `admin123456`