Devd doesn't appear in my gulpfiles at all, actually. Gulp literally just renders to disk. I then start devd separately with the appropriate livereload flags to handle the service end of things.

For instance, here's a devd command-line from the docs (https://github.com/cortesi/devd) that handles proxying local services, with a static directory overlaid. Gulp would be rendering assets into that static directory, the change would be noticed by devd, and liverload would be triggered.

  devd -l \
  -w ./src/ \
  /=http://localhost:8888 \
  /api/=http://localhost:8889 \
  /static/=./assets