@motzi in the scripts section paste:
using System.Diagnostics
...
var nugetProc = Process.Start(new ProcessStartInfo
{
FileName = $"{VVVV.Dir}\\lib\\packs\\nuget.exe",
Arguments = "install VL.OpenCV -prerelease",
UseShellExecute = false,
WorkingDirectory = $"{VVVV.Dir}\\lib\\packs"
});
nugetProc.WaitForExit();