Looks interesting but needs a few more language libraries to demonstrate broader utility outside of just Ruby projects.
Building on top of generic Postgres using a simple service is pretty neat but without the extra client libraries it’s hard to see a bright future.
The npm module doesn’t look like it actually does anything besides unzip and run the dB setup code at the moment so it’s definitely early days for them. But with a few basic client libraries that can actually do the work of publishing and subscribing to messages, this will be a pretty neat tool.
I’m going to have to watch how this develops.