That's the point. I've been working on a script on the shitter (I have an 8" laptop) to automate my invoicing from production (pdf), printing / emailing, posting in the ledger, etc. The processing power required is nothing. Total script may be 200 lines. PDF template(s) are about the same. CPU power required, one core pi zero could do it. Total time to create it is probably less than setting up and training an AI. Maybe four hours. Overhead: $0.