Warning
In order for the IAvatarService portion of the plugin to work you need to comment out or otherwise disable the services.AddSingleton<IAvatarService, NullAvatarService>(); line in Plugins/Build/HordeServer.Build/BuildPlugin.cs
PR for this into engine codebase will be opened in near future
Custom implementation of INotificationSink and IAvatarService for Discord, heavily based on the original Slack implementation.
This implementation currently uses the Discord.net library (MIT Licensed)
All the workflow provided by original Slack integration is supported by this implementation with some minor changes due to platform differences.
See the included documentation snapshot for more information.
Please note that this is still a work-in-progress implementation and I'm currently focusing on getting working on finalizing the porting part before making the stuff better.