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Continue to ChatASP.NET Core 2.1: Razor UI as Class Library https://www.talkingdotnet.com/asp-net-core-2-1-razor-ui-as-class-library/
ASP.NET Core 2.1: Razor UI as Class Library https://www.talkingdotnet.com/asp-net-core-2-1-razor-ui-as-class-library/