'Instead of debugging the one environment, I'll just reimplement the entire service!'
Obviously. :-)
I still think it's a cool project.
Before we (https://www.tesla.im) switched to Firebase we had (still have) our own realtime system built with NodeJS, Websockets, Amazon SQS (as backup to ensure messages don't get lost) and a RIAK cluster.
I wonder why real-time features aren't more popular? Real-time order status, live-updating maps, the list goes on!