PostgreSQL

"Postgres powers Batteries Included in our hosted database as a service offering. It's very stable and well-designed."

"The powerful database that we built Quailrunner around because we use it in all of our other projects"

"We use PostgreSQL as the database backing our control plane. Ubicloud also offers a managed PostgreSQL cloud service with all the bells and whistles (backup/restore, HA, etc.). If you'll be at PGConf.EU next month, please drop by our booth and say hi!"

"Powers everything in Router.so and makes it easy to set up an open source instance. "