The nodejs plugin allows a developer to specify a specific version of node to be used (which I needed to do because electron-packager needs at least 10.12 and the default is 8.10). E.g. parts: my-part: plugin: nodejs nodejs-version: 12.18.2 When I set a custom node version as above, I can see the build.snapcraft.io build server downloading node-v12.18.2-linux-armv7l.tar.gz, but then it still seems to use node 8.10.0 to execute commands so electron-packager still can't run. After getting advice from ogra in IRC I managed to work around this by manually setting the path in overide-build: PATH=$PATH:$SNAPCRAFT_PART_SRC/../npm/bin Full build log here: https://build.snapcraft.io/user/krellian/kiosk/1034267