Yarn for node_js

i am trying to build a node_js app with yarn. unfortunately the documentation of heroku does not match the buildpack that is used. it uses npm every time. Can anyone help?

Hi @rene-mueller ,

We expect to remove the support of Buildpacks at some point since it can be unpredictable to run applications with it. We recommend using a Dockerfile to build and run your application. You can check out this article to copy and adapt their example. And I recommend this article below to get started with Docker.