I understand it could be overkill. I plan on pulling a good number of hand lines from my kayak. I am thinking about using an old cordless drill which I can easily add a speed control to slow down the retrieval. I enjoy tinkering, I am a McGyver of sorts

The Code of Maryland Regulations (Last Updated: June 30, 2020)
Sec. 08.02.03.01. Crabbing Gear
dsd.state.md.us/comar/comarhtml/08/08.02.03.01.htm
B. Recreational Gear-Definitions.
....
6) "Handline" means a fishing line managed primarily by hand.
The above
Where is the line drawn between "primarily by hand" and use of a "mechanical device" like referenced in C. Commercial Gear. #6 "Hand Scrape"?
Thank you,
~Craig