Serenitys forge on Nostr: Solar, wind and lithium batteries for electricity. Bio-digesters for methane ...

Solar, wind and lithium batteries for electricity.
Bio-digesters for methane
Greenhouse/polytunnels for food growing.
Water catchment systems.
Writing, the printed word and copying machines for communication.
3D printing, cnc machining for manufacturing.
There's probably more but I'll leave that to others.