On the Laravel News site they've posted a tutorial sharing some helpful hints for the Laravel users out there about developing package locally without having to release it and wait to pull the latest version back down.

Developing Composer packages locally through a local file symlink speeds up development immensely when you want to create Laravel packages and try them out on a real application. I was reading about a tagged: laravel package local development tutorial composer

Link: https://laravel-news.com/developing-laravel-packages-with-local-composer-dependencies