composer.local.json.dist

{
    "__comment__": [
        "Rename this file from composer.local.json.dist to composer.local.json to"
        "manage your local dependencies without changing the core composer.json."
        "See https://github.com/wikimedia/composer-merge-plugin for more details."
    ],
    "require": {
        "example/dependency": "1.0.0"
    }
}