...
Open your Visual Studio project.
Go to Tools > Options > NuGet Package Manager > Package Sources.
Click on the "+" icon to add a new package source.
Enter the name and source URL of our custom package repository:
Name: Your Company Custom Packages
Source: https://gitlab.twinzo.eu/digital-twinapi/twinzov4/tdevkitprojects/-189/packages/nuget/index.json
Click OK to save the package source.
...