Async quick start - adamralph/bullseye GitHub Wiki
Follow the sync quick start but use this code instead:
using System.Threading.Tasks;
using static Bullseye.Targets;
class Program
{
static async Task Main(string[] args)
{
Target("default", async () => await System.Console.Out.WriteLineAsync("Hello, world!"));
await RunTargetsAndExitAsync(args);
}
}