Comment by nightfly

> I guess it could be handy for an application where you know it won't scale and you just want a simple, one-dependency database

That's where we use it at my work. We have host/networking deployment pipelines that used to have up to one minute latency on each step because each was ran on a one-minute cron. A short python script/service that handled the LISTENing + adding NOTIFYs when the next step was ready removed the latency and we'll never do enough for the load on the db to matter