Which buildpack(s) does the App Platform use?

I’m trying to run my application locally using the same environment/setup that will be used in production. To do so, I’m using pack, which builds images using buildpacks. From what I understand, that’s what the App Platform does.

What buildpack(s) should I use locally? Does DO just use heroku/buildpacks:18 or some custom buildpacks? Are they available anywhere, so I can run them locally and maintain dev/prod parity?

For context, I’m running a rails app, though I imagine this question would be of interest to those using other languages and frameworks as well. Thanks!

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Hey there,

Most of the buildpacks used in App Platform are based on the Cloud Native Buildpacks, many of which were open-sourced by Heroku. For this reason, it can be a good idea to look at the Heroku buildpack documentation for your coding language if your app is having issues at build time. However, a number of buildpacks used in App Platform were built in-house at DigitalOcean.

Lately, we have updated our documentation with the buildpacks we support. You could go through the same here.

Cheers, Taha Fatima