How to make $100k in Open Source by working hard
I think there are likely a variety of contractual options other than "24/7 phone support" which businesses would be happy to pay for, on an ongoing basis.  For example, you could charge $500 plus $100 per year for "maintenance", and not be any more specific than "the software will be maintained in an ongoing fashion", and now you won't be starting from $0 next January 1st.  As someone who has started from $0 every January 1st for the last 7 -- don't do it!  It sucks!Congrats, though -- Sidekiq is one of the few commercial OSS offerings that I know of doing well in the Ruby/Rails ecosystem.  Most of the others just act as friendcatchers for consulting, too.