DSharpPlus is an unofficial .NET wrapper for the Discord API, forked from DiscordSharp. It's an alternative to Discord.NET. In comparison, it's not as mature, but much simpler to use.
I reworked the library's event model, updating it to an asynchronous one, implemented outgoing and incoming voice, implemented a better command module, updated the library to .NET Standard, fixed a lot of consistency issues, and overall done several major refactors on the library, among other contributions. I also created the new documentation, which I currently host.