There's `dotnet run` now. You can:

vim projects/example.cs

    var builder = WebApplication.CreateBuilder(args);
    var app = builder.Build();
    app.MapGet("/", () => "Hello World!");
    app.Run();

Not the same as PHP I know, but it's close enough for me.

I'm glad it works for you but I guess that doesn't really cover the use case I was talking about because I want to have a bunch of these. As an example, I threw together a quick web hook processor, data from one service reformatted to fit another. I don't really need to spin up a whole new VPS for an endpoint that'll only be hit once or twice a week, so this is the workflow for doing that on the server I already have.

PHP:

   - vim projects/webhook.php

   - vim projects/webhook.cs
   - Assign a port number
   - Reconfigure Nginx/Caddy to serve that port number
   - Reconfigure systemd to dotnet run projects/webhook.cs on startup