Awesome! Thank you so much for the reasoning behind it. I haven't had a chance to look at Concurrent::Ruby but that _sounds_ like a pretty good reason all by itself!

As a big plus for a lot of folks who don't need absurd throughput, this makes for one less dependency by using the same db you already have. I'd be sold given the right use-case, thanks for sharing this, mate and _good job!_ ;)