本地开发composer包

{
    "name": "fetzi/application",

    ...

    "repositories": {
      "dev-package": {
        "type": "path",
        "url": "relative/or/absolute/path/to/my/dev-package",
        "options": {
          "symlink": true
        }
      }
    }
}

参考：https://www.cnblogs.com/zhouxuchen/p/10926201.html
https://johannespichler.com/developing-composer-packages-locally/