> How long did it take you to build the first version? The calculator or Hexadecimal? It took a couple of hours to build a calculator, and a couple more to po

> How long did it take you to build the first version? The calculator or Hexadecimal? It took a couple of hours to build a calculator, and a couple more to polish it. Hexadecimal took a very, very long time to build (several months). Engineering-wise, it is the hardest thing I've ever done. It was way over my head when I started. > How many people? Just me. > Which tech are you using for it? The calculator is a part of the static site built with HTML, CSS, and sprinkles of ES6. I generate it with nanoc. The web app is built in vanilla Rails stack: Ruby, Rails, Postgres, Redis, Sidekiq, Caddy. I don't use front-end frameworks (yes, I'm a dinosaur). For more context: https://tryhexadecimal.com/running-costs https://tryhexadecimal.com/running-costs