road to ssh (for multiple github account) on windows machine!

credit: jcmiron
i am trying to add both my work and personal GitHub account to same
device.

so the steps involved are:

1. enable and start (if not all ready) OpenSSH Authentication Agent. you can do it from the services or by running command below
   

   # start the ssh-agent in the background
   Get-Service -Name ssh-agent | Set-Service -StartupType Manual
   Start-Service ssh-agent
   

2. create ssh key at local machine for each account (here work and personal). follow this link for in depth explanation create ssh.

3. add a config file in the same directory as .ssh folder from step 1. in my case, the content of this config file is:
   

   # Work GitHub
   Host  work # alias for work
   Hostname  github.com
   User  git
   IdentityFile  ~/.ssh/work_key # private key for work
   IdentitiesOnly  yes
   
   # Personal GitHub
   Host  per # alias for personal
   Hostname  github.com
   User  git
   IdentityFile  ~/.ssh/personal_key # private key for personal
   IdentitiesOnly  yes
   

4. add ssh key to your github account. follow add ssh to github. basically cat your personal key (make sure it is not accessible for all users, i had to revoke permission for all other users) and copy the content till last (with out carriage return) and paste it in GitHub.

5. add both private keys to OpenSSH cache by running following command
   

   ssh-add .\work_key 
   ssh-add .\personal_key
   

6. confirm things are working so far by running
   

   ssh -Tv per # for personal key (per is the alias)
   ssh -Tv work # for work key (work is the alias)
   

7. if everything is correct so far, you will see the line below in the pile of lines
   

   Hi anmjubaer! You've successfully authenticated, but GitHub does not provide shell access.
   

   (in your case, your name)

8. next, go to your user folder. you may see a file named .gitconfig. if not, create one with content (with others if exists)
   

   [includeIf "gitdir:E:/work/"] # maintain seperate work repo-parent folder (where all your work-related repositories will be located)
   path = ./.gitconfig-work
   
   [includeIf "gitdir:E:/jb/"] # maintain seperate personal repo-parent folder (where all your personal repositories will be located)
   path = ./.gitconfig-personal
   
   [user]
   name = jubaerad
   email = [e-mail]
   
   [core]
   sshCommand = C:/Windows/System32/OpenSSH/ssh.exe
   

   don't worry, we will create .gitconfig-personal and .gitconfig-work next

9. now create two more file named (.gitconfig-work and .gitconfig-personal if you want) with content

   for .gitconfig-work
   

   [user]
   name = anmj
   email = [e-mail]
   [core]
       sshCommand = "ssh -i ~/.ssh/work_key"
   

   for .gitconfig-personal
   

   [user]
   name = jubaerad
   email = [e-mail]
   [core]
       sshCommand = "ssh -i ~/.ssh/personal_key"
   

10. now clone or set remote starting with appropriate host alias. for example, instead of
    

    git clone [e-mail]:jubaer-ad/GraphQLDemo.git
    

    use
    

    git clone per:jubaer-ad/GraphQLDemo.git # remember? per is the alias we set earlier for personal usage
    

finally some words from Gemini 2.0 Flash (yes, i used it)

"Boom! You've officially wrangled those SSH keys into submission. Now you can switch between GitHub accounts like a secret agent changing disguises. Just remember, with great SSH power comes great responsibility... like, don't accidentally push your personal cat meme collection to your work repo. We've all been there. (Or, at least, I've heard someone has.) Happy coding, and may your pushes be swift and your merges be conflict-free (a developer can dream, right?)."