Yeah, but the value they provide IMO (or promise to, it’s only promised in the readme, not shown) is the observability.

Creating one of these event driven systems is somewhat trivial. Node has event emitter built in for example.

Being able to monitor, debug, scale it and ensure it’s robust to failure is much harder.

In that respect it sounds kinda like tray.io. [1]

1: https://youtu.be/g_2HNv8HZcA