Here we once had a project on our bukkit city-server to build a fictitious
medium-sized family production company from the eighties.
Complete with interior and machinery.

First built as 1.12.2 some time ago and now improved and revised in 1.19.3.
On our old server there were 12 citizen nps's scurrying through the factory.

Maybe this schematic is still quite good enough to use for your own city
server or for rollplay. Or just as a suggestion for a new redstone project.

So have fun. I hope it's useful.

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You don't know how to add schematic files to your world?

No problem:
You need worldedit on your server as a plugin or in your Minecraft Client as a mod.
Copy the schematics file into your worldedit schematics folder.

Enter in the cosole:
# list your schematics files
/schematic list
# load schematics file
/schematic load <your-desired-schematics-name>
# paste schematic into your world
//paste

other suitable commamds:
//undo

# this you can do before paste rotate schematic with X Y Z
//rotate 90 0 0