The default user `node` can't write to the default `WORKDIR` (`/app`). To fix that, either change `WORKDIR` to `/home/node/app` (which already exists, and [works well in `prebuildify-cross`](https://github.com/prebuild/prebuildify-cross/blob/0a1c84dc00d1dce10ccd5dd633051eda1cbc86dd/guest.js#L9)), or create and chown `/app`.
The default user
nodecan't write to the defaultWORKDIR(/app).To fix that, either change
WORKDIRto/home/node/app(which already exists, and works well inprebuildify-cross), or create and chown/app.