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!