message: Avoid creating interfaces/package-lock.json
  Which needs to be manually removed each time
diff: set -euo pipefail
  (cd interfaces/ &&
  - npm install --no-package-json &&
  + npm install --no-package-lock &&
  npm run generate-koa-server && npm run generate-node-client)
  # Might not work if file already has "scripts" entry.
  