hello_world_main.dart

import 'package:flutter/material.dart';

void main(){
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: HomeScreen(),
    )
  );
}

class HomeScreen extends StatelessWidget{
  @override
  Widget build(BuildContext context){
    return Scaffold(
      appBar: AppBar(
        title: Text("Dewansh's Portfolio"),
      ),
      body: Center(
        child: Text("Hello World"),
      ),
    );
  }
}