improve heroku preset

[danielroe]

heroku is very customisable but mostly this is done with buildpacks. Here's the node one.

By default the node buildpack will build, prune dev dependencies + package the entire app folder into a docker image. This is lots more space than Nitro needs. Options:

1. create our own heroku buildpack
2. create docker image (which can be shared with other platforms): docker preset #54

If you use the default heroku buildpack, you'll need to run heroku config:set HOST=0.0.0.0

[Hebilicious]

@danielroe Can you confirm that this issue is still open to optimise the Heroku preset ?

[pi0]

Considering it is an unattended issue for long time and we have a working preset, closing this tracker. docker support (#54) might allow improving Heroku preset too.