<h1>Run C# Scripts Directly with .NET 10 Preview 4</h1>
<p>.NET 10 Preview 4 introduces an exciting new feature that allows developers to run C# files directly using the command <code>dotnet run app.cs</code>, without the need for project files, Main methods, or solution files. This development marks a significant step in making C# more accessible for scripting, prototyping, and developing quick utilities.</p>
<h2>Key Features</h2>
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<p><strong>Top-Level Statements</strong>: The feature supports top-level statements, which means you can write and execute code without the boilerplate code typically required in a C# project.</p>
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<p><strong>Inline NuGet Package References</strong>: You can include NuGet package references directly within your script through file-level directives using <code>#:package</code>. This simplifies dependency management and setup for quick scripting tasks.</p>
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<p><strong>File-Level Configuration Options</strong>: Configuration settings can be specified at the file level, enabling precise control over script behavior without creating a full project structure.</p>
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<p><strong>Web API Development</strong>: The ability to run C# scripts directly includes support for creating web APIs, expanding the utility of this feature even further.</p>
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<h2>Seamless Conversion to Full Projects</h2>
<p>When your scripts grow in complexity, you can convert them into full projects using the <code>dotnet project convert</code> command. This allows you to start simple and scale up your project as needed, maintaining flexibility and control over your code.</p>
<p>In summary, the new functionality provided in .NET 10 Preview 4 enhances the versatility of C# by making it easier to perform lightweight scripting tasks such as database seeding and quick utility development. It ensures that scripts can easily be scaled up to accommodate more complex needs, all while maintaining the simplicity and efficiency required for rapid development.</p>


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.NET 10 Preview 4 introduces the ability to run C# files directly using `dotnet run app.cs` without requiring project files or Main methods. The feature supports top-level statements, inline NuGet package references through `#:package` directives, file-level configuration options, and even web API development. Scripts can be seamlessly converted to full projects using `dotnet project convert` when they grow in complexity, making C# more accessible for scripting, prototyping, and quick utility development.