(1)https://docs.microsoft.com/en-us/nuget/hosting-packages/nuget-serverapi
(1.2) depoly to IIS(http://localhost:53673)spa
(1.3) config you apiKey if need. else you can set 'false'server
(2)Create a ClassLibrary projectget
(3)nuget pack ClassLibrary3.csprojit
(4)nuget push .\ClassLibrary3.1.0.0.nupkg -Source http://localhost:53673/nugetio
(5)Create a Console projectclass
(6)VS tools Add a package source(http://localhost:53673/nuget)csp
(7)Manage Packages for Solution - Search (you library name)tools
ps: with api key schemaco
<add key="apiKey" value="passw0rd" />
nuget push .\ClassLibrary3.1.0.0.3.nupkg passw0rd -Source http://localhost:53673/nuget