Sometimes that's someone using a hammer to solve problems which are clearly not nails. E.g. that guy [1] solving Advent of Code problems with just VIM.
Or it can mean recognizing which unassuming little tool makes a given task surprisingly easy. E.g. Russ Cox [2] solving AoC problems with awk or Go's built-in dependency resolution algorithm for resolving the values of global variables.
Do you know of other programmers or youtube channels in a similar vein?
[1] https://www.youtube.com/@denvaar
[2] https://www.youtube.com/@rscgolang