What are the common environment variables used in Laravel Sail

1. Database Configuration:
- `DB_CONNECTION`: The database connection to use (e.g., `mysql`, `pgsql`, `sqlite`, `sqlsrv`).
- `DB_HOST`: The database host address.
- `DB_PORT`: The database port number.
- `DB_DATABASE`: The name of the database.
- `DB_USERNAME`: The database username.
- `DB_PASSWORD`: The database password.

2. Redis Configuration:
- `REDIS_HOST`: The Redis host address.
- `REDIS_PASSWORD`: The Redis password (if applicable).
- `REDIS_PORT`: The Redis port number.

3. Mail Configuration:
- `MAIL_MAILER`: The mail driver to use (e.g., `smtp`, `sendmail`, `mailgun`, `ses`, `postmark`, `log`, `array`).
- `MAIL_HOST`: The mail host address.
- `MAIL_PORT`: The mail host port.
- `MAIL_USERNAME`: The mail username.
- `MAIL_PASSWORD`: The mail password.
- `MAIL_ENCRYPTION`: The mail encryption protocol (e.g., `ssl`, `tls`).
- `MAIL_FROM_ADDRESS`: The "from" address of any outgoing messages.
- `MAIL_FROM_NAME`: The "from" name of any outgoing messages.

4. Broadcast Configuration:
- `BROADCAST_DRIVER`: The broadcast driver to use (e.g., `log`, `pusher`, `redis`, `null`).
- `PUSHER_APP_ID`: The Pusher app ID (if using the Pusher driver).
- `PUSHER_APP_KEY`: The Pusher app key (if using the Pusher driver).
- `PUSHER_APP_SECRET`: The Pusher app secret (if using the Pusher driver).
- `PUSHER_APP_CLUSTER`: The Pusher app cluster (if using the Pusher driver).

5. Cache Configuration:
- `CACHE_DRIVER`: The cache driver to use (e.g., `file`, `database`, `memcached`, `redis`).

6. Session Configuration:
- `SESSION_DRIVER`: The session driver to use (e.g., `file`, `database`, `memcached`, `redis`).

7. Twill Configuration:
- `ADMIN_APP_PATH`: The path for the Twill admin console (e.g., `/admin`).
- `ADMIN_APP_URL`: The URL for the Twill admin console (e.g., `https://admin.example.com`).

8. Other Configuration:
- `APP_ENV`: The current application environment (e.g., `local`, `staging`, `production`).
- `APP_DEBUG`: Whether to enable debug mode (`true` or `false`).
- `APP_KEY`: The application encryption key.
- `LOG_CHANNEL`: The logging channel to use (e.g., `stack`, `daily`, `syslog`, `errorlog`).

These are the most common environment variables used in a Laravel Sail setup. Depending on your application's specific requirements, you may need to add or modify additional environment variables.