Someone had this idea, but from a static laser tower https://news.ycombinator.com/item?id=26376376 (343 points | 4March 2021 | 250 comments) and https://news.ycombinator.com/item?id=28793660 (317 points | October 2021 | 161 comments). I'd be very afraid of a missed shots or reflections impacting an eye, also the fire hazard.

Ans there is also a recent post where someone use a similar device to light the mosquito https://news.ycombinator.com/item?id=44005200 (20 points | May 2025 | 5 comments) and you must give the final bow that sound safer. (Protip: Buy an Electric Fly Swatter)