Hoho, we have started deathworld with friend few weeks ago and its already not so easy. This would be much more challenging!

TL;DR
Control of beacons by circuit.

What ?
Add simple on/off option for beacons controlled by circuit network.

Why ?
This can be really usefull and it is not making game any easier because there is simple workaround now.
For now i use beacons connected with power switch and if (item < 500 ...

Yes please!! I would like to see somehow this option also for trains. Even manually checkbox fire or not fire would be good. I dont like auto firing at anything

You only really need a chemplant if there are either two fluid inputs and/or two fluid outputs. Anything else works in an assembling machine just fine.

Great idea i agree with that proposal

What about remove input/output pipes if there is not input/output of liquid.

Assemblers works same way, if there is liquid input/output then pipe appears. It is not presented all the time.

For example plastic factory, i really do not like output pipes on chemical plants in my plastic factory where ...

Probably after update 0.17.37 I can not load our save again.

It is simple pvp scenario without any mods.