There are files to restore build. To do this, you need to:

1. Download these files
2. Create in Visual Studio (I used 2022) a project with the template "Binding library Xamarin"
3. Add file YoutubeExplode.cs into the project
4. Add nuget packages: Xamarin.MP4Transcoder and YoutubeExplode
5. Build project in the release mode. You will get in the bin folder the dll named like your project name
6. Create in Visual Studio (I used 2022) a project "Xamarin.Forms"
7. Add other files to the project
8. Replace or add from Android manifest raws with permissions and with necessary requests
9. Change in .cs files namespaces on your created project's namespace
10. Change in xaml namespaces (here was App8 namespace) on your created project's namespace
11. Add YoutubeExplodePackage if needed
12. Add dependence to created dll in step 5 for 'your-project-name'.Android project
13. Enjoy