Always you can do it manually. Those are the steps:
git clone github_urlnode_modules folder for e.g. node_modules/browser-syncNow it should work for you. To be sure it will not break in the future when you do npm i, continue the upcoming two steps:
package.json file in it's folder.package.json and set the same version for where it's appear in the dependencies part of your package.jsonWhile it's not recommened to do it manually. Sometimes it's good to understand how things are working under the hood, to be able to fix things. I found myself doing it from time to time.