refactor: modify into client server model

Server/Program.cs

@@ -0,0 +1,35 @@
+using System.Net;
+using System.Net.Sockets;
+
+using var listener = new Socket(SocketType.Stream, ProtocolType.Tcp);
+listener.Bind(new IPEndPoint(IPAddress.Loopback, 9000));
+
+Console.WriteLine($"Listening on {listener.LocalEndPoint}");
+
+listener.Listen();
+
+while (true)
+{
+  var connection = await listener.AcceptAsync();
+
+  _ = Task.Run(async () =>
+    {
+
+      var buffer = new byte[4096];
+      try
+      {
+        while (true)
+        {
+          int read = await connection.ReceiveAsync(buffer, SocketFlags.None);
+          if (read == 0) break;
+
+          await connection.SendAsync(buffer[..read], SocketFlags.None);
+        }
+      }
+      finally
+      {
+        connection.Dispose();
+      }
+    }
+  );
+}

Server/Server.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>Server</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Tmds.Systemd" Version="0.8.0" />
+  </ItemGroup>
+
+</Project>

Server/deps.json

@@ -0,0 +1,7 @@
+[
+  {
+    "pname": "Tmds.Systemd",
+    "version": "0.8.0",
+    "hash": "sha256-URLuPtGzxEIqoUrCIXwlSZtL60ixHA/Pc7U0ZD/+6/0="
+  }
+]