[Question] Use without `.sln` file?

[lonix1]

Hello and thank you for this nice tool!

In the docs it has this for switching:

{
  "solution": "NSwag.sln",        // <--------------
  "mappings": {
    //...
  }
}

I'm using vscode on linux so don't use .sln files. I just have a directory with many projects in them, each having a Foo.csproj file.

Is it possible to somehow use the project/package switching feature in my case?