I've been building Cove—commenting for Ghost blogs with members—for the past 3.5 weeks. In that time I've built an MVP, polished the MVP, put it online and tested the system on a number of blogs.
Today I made the launch landing page live and opened Cove up to the public. It's been a wild last few weeks building something from nothing!
I'm not expecting traffic just yet but the product is at least launched. Next up is a marketing phase.