Initial files

Start/Shared/Start.Shared.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>Nullable</WarningsAsErrors>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <SupportedPlatform Include="browser" />
+  </ItemGroup>
+</Project>

Start/Shared/WeatherForecast.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Start.Shared {
+	public class WeatherForecast {
+		public DateTime Date { get; set; }
+
+		public int TemperatureC { get; set; }
+
+		public string? Summary { get; set; }
+
+		public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+	}
+}