I don’t care what they would cost in terms of materials, I would love to see the following options for our bases and freighters:
A Ship Maintenance Bay or Repair Workstation: Once built this would allow you to remove ship upgrades and get back 100% of the cost (or rebuild them at no cost).
A Multi-tool Repair Station: Once built, this would allow you to remove multi-tool upgrades and get back 100% of the cost (or rebuild them at no cost).
A Hydroponics Supply Pump: @Mad-Hatter gets credit for this one. This wonderful, delightful, glorious device would supply your hydroponics trays with fuel - indefinitely, thus saving you from the maddening click fest of harvesting.