Managing Separate Git Identities and SSH Keys for Multiple Clients on One Laptop

Freelancers working for several clients on one machine often hit problems like commits signed with the wrong email or rejected SSH authentication. A recommended fix organises projects into folders per client and uses Git's conditional includes so that the folder a repository sits in determines which identity applies. Each client gets a small config file setting their name and email, and an SSH command that forces a specific key. Separate SSH keys per GitHub account are needed because the platform identifies users by key. The setup reportedly takes about twenty minutes and can be checked with git config --show-origin.