Who composts ?

I want to build a SS drum on rollers, turned by a geared down solar powered motor, with direct Oxygen injection (from compressed O2 bottle) into the compost mix. Time the motor for 1 minute turning inverals, with 24 hour oxygen injection intt he drum.......
... with drip fertilizer, screw-drive feeder and a computer-controlled probe that determines density and ph.
 
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