GCM Core does support multiple users with GitHub remotes. You have to put the username in the remote URL, for example: https://alice@github.com/owner/repo http

GCM Core does support multiple users with GitHub remotes. You have to put the username in the remote URL, for example: https://alice@github.com/owner/repo https://alice@github.com/owner/repo GCM will store credentials for "alice" only. Repositories that have remote URLs with a different "user@" will use different credentials. Remote URLs without a "user@" part at all (like "https://github.com/owner/repo https://github.com/owner/repo") are treated like the "default" user for GitHub.com, rather than a specific one.