Hahaha literally as I'm writing the backend C code for the new Perl Breathalyzer.
Want to get it done in time for my family visitors near Christmas. I'm going to throw a quick Dancer2 wrapper around it, and have a display on a TV with <insert random way of displaying the results in a silly method> visual appearance.
Accuracy will be directly related to my BAC as I'm finalizing the mathematics within the C code.