AVee's Stars
rianjs/ical.net
ical.NET - an open source iCal library for .NET
ServiceStack/ServiceStack
Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
ServiceStackV3/ServiceStack.Contrib
Common, high-level libs and utils, not core to the framework but useful to its users
ServiceStack/ServiceStack.Text
.NET's fastest JSON, JSV and CSV Text Serializers