Love this mod. Would love to have a circuit condition trigger. Similar to lamp would be good. Maybe a Signal > 0 to start firing. and firing speed can be 1 through 5 based on signal strength.

its hard to imagine factorio without that automation.

That's good idea. The mortar crate is a gun turret in disguise, which allowed to load all types of rockets. My runtime script will then filter the firework rockets and shoot them in an optimized interval. Unfortunately, the turrets can't hook up to circuit network.

I may brainstorm about this when I finish my other mods' next release.

I'll revisit this idea after 2.0 release. Turret supports circuit!

https://factorio.com/blog/post/fff-410