Just watched a talk on this topic from last December: https://media.ccc.de/v/39c3-of-boot-vectors-and-double-glitc...
I'm more interested in the 3D printed platform made to to hold up the chip and the fact that this seemed to be done in a garage. I thought anything laser related would require much more precision but the article has pretty much everything ordered online.
Previously discussed: https://news.ycombinator.com/item?id=42708682