Same deal for Sidekiq, a very popular job worker library in the Ruby world. On startup, if you don't have a commercial license, it advertises the availability o

Same deal for Sidekiq, a very popular job worker library in the Ruby world. On startup, if you don't have a commercial license, it advertises the availability of one: Upgrade to Sidekiq Pro for more features and support: http://sidekiq.org I personally have no problem with this and I think the npm ruling is a bit too restrictive.