💻 Are you Using Same Machine for Work & Personal Git? Stop Mixing Your Commits!

Ever committed company code with your personal email? Or pushed a side project using your work account? 

If you use one laptop for both environments, managing multiple GitHub accounts can be a headache.

Here is the cleanest, bulletproof way to separate them entirely using SSH Aliases and Git Folder Automation. No more manual switching. No more typos.

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🛠️ Step 1: Create Separate SSH Keys

Generate one key for your personal account and another for work:

ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519_personal

ssh-keygen -t ed25519 -f ~/.ssh/id_ed25519_work

Add the generated public keys to the respective GitHub accounts (Fig. 1).

Fig. 1

Then open your SSH config file (%USERPROFILE%\.ssh\config on Windows) and add:

# Personal Account
Host github.com-personal
  HostName github.com
  User git
  IdentityFile ~/.ssh/id_ed25519_personal

# Work Account
Host github.com-work
  HostName github.com
  User git
  IdentityFile ~/.ssh/id_ed25519_work

💡 When cloning repositories, use the alias instead of github.com (important):

git clone git@github.com-personal:username/repo.git

git clone git@github.com-work:company/repo.git

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📂 Step 2: Keep Projects in Separate Folders

For ex:

D:/Personal/

D:/Work/

Keeping projects organized makes automatic profile switching possible.

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🤖 Step 3: Let Git Auto-Switch Identities

Remove any global email configuration and let Git choose the correct profile based on the folder you're working in.

Open your global Git config:

git config --global --edit

Add:

# Personal projects
[includeIf "gitdir/i:D:/Personal/"]
    path = ~/.gitconfig-personal

# Work projects
[includeIf "gitdir/i:D:/Work/"]
    path = ~/.gitconfig-work

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🗃️ Step 4: Create Your Git Profiles

Create these files in your home directory:

Windows

notepad %USERPROFILE%\.gitconfig-personal

notepad %USERPROFILE%\.gitconfig-work

macOS/Linux

touch ~/.gitconfig-personal ~/.gitconfig-work

👉 File: .gitconfig-personal

[user]
    name = Your Personal Name
    email = your-personal-email@gmail.com

👉 File: .gitconfig-work

[user]
    name = Your Work Name
    email = your-work-email@company.com

✅ Verify It Works

Inside any repository, run:

git config user.email

Git should automatically show the email associated with that folder.

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🔥 Why This Setup Is Worth It

✅ No manual account switching

✅ Personal and work SSH keys stay separate

✅ Commits always use the correct name and email

✅ Easy to maintain when setting up a new machine

Save this for your next future setup. 🚀

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