node.js - Why use a buildpack on heroku? -


i have run across more , more references buildpacks heroku apps. other needed buildpack not support heroku, why define parameter in app creation? have see references speed increases npm using caching. context help.

if running 1 of heroku's supported languages, , not encountering bugs, wouldn't bother custom buildpack. but, if either of not true, buildpack gives tools fix situation yourself. more info here: https://devcenter.heroku.com/articles/buildpacks


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