the.com/tinkerer

means A person who enjoys fiddling with, adjusting, and experimenting on mechanical or technical things, often out of curiosity rather than necessity.

from From 'tinker,' the old word for an itinerant mender of pots, pans, and kettles, who traveled town to town patching metal goods — possibly echoing the clinking 'tink-tink' sound of hammer on metal as they worked. By the 1600s 'tinker' had already drifted toward a verb meaning to fuss with repairs in an unskilled or experimental way, and 'tinkerer' followed as the name for anyone who can't leave a mechanism alone.