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To host a NextJS app using nrwl/next on 0.0.0.0:3000 instead of localhost:3000, you can follow these steps:

1. Open the workspace.json file in your NextJS project.

2. Find the serve target under your app's configuration.

3. Add the --host flag followed by 0.0.0.0 to the command property.

   For example, your serve target might look like this:

   "serve": {
    "executor": "@nrwl/web:dev-server",
    "options": {
      "buildTarget": "my-app:build",
      "port": 3000,
      "command": "node_modules/.bin/next start --host 0.0.0.0"
    },
    "configurations": {
      "production": {
        "buildTarget": "my-app:build:production"
      }
    }
   }
   

4. Save the workspace.json file.

5. Run your app using the --configuration flag and specifying the desired configuration (e.g. development, production, etc.).

   For example:

   nx serve my-app --configuration=development
   

   Your app should now be running on 0.0.0.0:3000, accessible from any device on the network.