One of my best friends asked me if I could make a thing that he was dreaming. I asked him about detailed specification --- I'm always impressed his clear and concrete vision --- and ordered several components online. I also started writing a code that would be installed in an embedded microprocessor.
24 hours later, the components arrived at my lab, and the code was ready. I did some DIY works with drill and soldering iron for about 6 hours.
I opened Kuroneko delivery service with Google Chrome and typed in my friend's address. They picked up the new dream device after another 6 hours. These hours were used for dry-run test (and writing an invoice).
Just 36 hours could make his dream real.
And this is what I learned from Tom Chi.