Author of the blog post here -- that looks like exactly what I needed, so I'm probably going to add a dependency to it to https://github.com/kaaveland/eugene/ so I can delete a ton of code. :-)

That looks fantastic, so I'm actually just going to put a link to it in the post so that more people see it.

There's a similar JVM version here: https://github.com/zonkyio/embedded-postgres

It's well maintained and seems to do what it says on the tin. I start it up once across all the suites (managing DB state as required in the suite) and the overhead is very minimal.