Not sure if this is really what you’re asking about, but there are some laser cutting/engraving add-ons you can get. Basically replaces the hot end with a laser. After I upgraded to a Prusa MK4, I’m thinking about getting one of those for my old E3v2 and turning it into a laser cutter.

My company’s anti-malware started triggering on filezilla’s installer a few years ago because they started packaging apparently sketchy ads in it. Dunno if that’s still the case or not. I ended up switching to WinSCP instead. (Which I believe is actually another example of just one or two guys running that show too.)