Sharing because I found this very interesting.
The Four Thieves Vinegar Collective has a DIY design for a home lab you can set up to reproduce expensive medication for dirt cheap, producing medication like that used to cure Hepatitis C, along with software they developed that can be used to create chemical compounds out of common household materials.
I you make your own, there is no risk for blindness. Blindness comes from methanol, not ethanol. If you use a yeast based process to produce the alcohol and then distill it, there is no way to accidentally produce methanol in that process. The cases where people get blind or die from moonshine stems from when the feds replaced moonshine with methanol to be able to make that claim and disrupt the business of organized crime during the prohibition. There are still cases now and then where people try to make drinkable alcohol from some industrial base and don’t know how to.
TLDR: Don’t buy, make.