ok so ik that fluid stuff is planned but i just wanted to suggest some ideas

Fluid Basics:
so i would suggest barrels as a storage method of fluids to be specific 2 kinds of barrels wood and metal(the metal one being able to hold gasses and hot fluids).Pipes made of wood and glass(so u can see the fluid inside) these should have a few more realistic mechanics like pressure and needing pump to deliever fluids upwards or speeding up the transport.combining and filtering fluids may be of good use if u transport alot of different fluids to the same place. also an idea would be that u could use some fluids (just ass an example any kind of oil) for lubrication of certain parts letting them run more efficient or faster or having to cool some engoine to make them more effective.

Fluid mechanics/hydraulics:
remember when i said that pressure would be cool well that i think would be mostly useful in hydraulics and yes i do know that power is mostly transfered over belts and gears and so on but my idea is to make some machines able to use the presure of fluids to work(lets say a piston) they wouldnt need to be powered by gears directly but they would need a certain kind of pressure(see it as an alternative to stress) and u would need pumps and compresors ass running infrastructure this might be able to get work into smaller places or even use new machines

STEAMPUNK:
ok excuse the joke but i think steam might be a good addition mostly because of the pressure thing and also to add a new engine but firstly u need some kind of boiler(duh) .i would say that some kind of flaxbeard esque steam tolls would be nice

I second this

Thanks for your suggestion, it has been added to our public submission sheet.