bin/package-link and bin/package-unlink are two new scripts that automate all of the steps required for using local packages and handling their dependencies: you no longer have to npm link packages or adjust your docker-compose.yml file. 

Previously, to test your own plugins (including forked plugins), you had to use NPM and its registry—even if you just wanted to load a local package. These scripts greatly simplify package development, allowing you to test local plugins easily and efficiently.