Weird no space left error when pushing nextjs app about nodejs-buildpack HOT 1 OPEN

i face the same problem.

From what i have figure out :
in node_modules/@next, all the SWC optional dependencies/binaries are downloaded, which result in 1.3GB downloaded...

You must have these binaries when you build, so next and SWC can use the proper binary to compile.
But if you compile in standalone mode (doc here) the .next/standalone folder in sufficient and does not need more compiling... When you upload only the content of the standalone folder (which is the recommended way according to next), you should just do node server.js and everything runs.

But the buildpacks always try to to a npm install/npm rebuild. And since the node_modules in the .next/standalone folder contains only the node_modules needed (and not all the binaries), the buildpacks process download again the binaries, resulting in +1.3GB data for nothing...

It would be best to add an option somewhere that tells the buildpacks that we do not need to build our app (hence skipping the npm rebuid/npm install)

To add a bit more:
I tried to do this stackoverflow workaround (which is putting all my dependencies in dev), but next is required in prod dependencies. Since it's next npm modules that download the ~1.3Go binaries, the problem stay.

There really should be an option to disable npm rebuild/npm install in the buildpack

from nodejs-buildpack.