How to download and setup dotnet-server-sdk
Open terminal and run command
                                            git clone https://github.com/launchdarkly/dotnet-server-sdk.git
                                        
                                        git clone is used to create a copy or clone of dotnet-server-sdk repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with dotnet-server-sdk https://github.com/launchdarkly/dotnet-server-sdk/archive/master.zip
Or simply clone dotnet-server-sdk with SSH
                                            [email protected]:launchdarkly/dotnet-server-sdk.git                                    
                                    If you have some problems with dotnet-server-sdk
You may open issue on dotnet-server-sdk support forum (system) here: https://github.com/launchdarkly/dotnet-server-sdk/issuesSimilar to dotnet-server-sdk repositories
Here you may see dotnet-server-sdk alternatives and analogs
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