Does Meteor copy the local NPM packages?

just have a question about how Meteor handles NPM packages during the build process. If I run meteor build …/built, will Meteor copy all packages from the node_modules folder into the build bundle, or will it run npm install and download all packages again for the build bundle?

I’m asking the question because I’m using In this case, I can run npm run-script updatedb to update the database. If I run it on my dev machine and then execute meteor build, will the build bundle have the updated database or the default one of the package?