go get via ssh

.gitconfig

# command-line version: git config --global --add 'url.git@github.com.insteadOf' 'https://github.com'

[url "git@github.com"]  # this works on Linux
        insteadOf = https://github.com
        
# Git for Windows (git version 2.18.0.windows.1) seems to do less magic with the substitution and needs:
[url "git@github.com:"]  # Git for Windows (under MING) needs the trailing ":" here and the trailing "/" below.
        insteadOf = https://github.com/  

Windows also needs ssh-agent if your keys are password protected. This started shipping with Windows 10 in 2018.

Start the service ssh-agent from the an admin PowerShell (or OpenSSH Authentication Agent in the services UI).

From the thread on PowerShell/Win32-OpenSSH#224

1 . Check the current status of ssh-agent: "Get-Service | select -property name,starttype"
2. Set the new type : "Set-Service -Name ssh-agent -StartupType Manual"
3. Start it: "Start-Service ssh-agent"
4 Add simply your key as before: "ssh-add"