Just to save other users some time, it seems like sinopia is no longer maintained, and doesn't work on Node 8 https://github.com/rlidwka/sinopia/issues/456 htt

Just to save other users some time, it seems like sinopia is no longer maintained, and doesn't work on Node 8 https://github.com/rlidwka/sinopia/issues/456 https://github.com/rlidwka/sinopia/issues/456 Verdaccio, mentioned in a sibling comment seems to be the recommended replacement ... https://github.com/verdaccio/verdaccio https://github.com/verdaccio/verdaccio