Snapcraft puts $SNAP/bin on $PATH when creating a strictly confined snap, but not on classic. This means that classic snaps using the node plugin won't find node out of the box: $ heroku /snap/heroku/485/bin/heroku: line 19: node: command not found You have to explicitly include $SNAP/bin on the $PATH: $ git diff diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml index 4caa0d5..1fbd2ac 100644 --- a/snap/snapcraft.yaml +++ b/snap/snapcraft.yaml @@ -8,7 +8,7 @@ confinement: classic apps: heroku: - command: bin/heroku + command: env PATH=$SNAP/bin:$PATH heroku parts: hello-node-snap: This is not discoverable. It requires understanding of the internals of classic confinement.