One of the newest features of .Net core 10 with C# 14 is the file-based apps. This feature allows you to execute C# code in a simple .cs file without the need to create a solution, a project, or any of the related structure.
For example you can create a script.cs file using the notepad with the content:
Console.WriteLine(“This is a script in c#.”);
Then in the command line or the terminal you execute the command: