Well done! Congrats on getting this built, but also approved by the school officials. Coding is hard, and it's great that you can do that, but the key developme

Well done! Congrats on getting this built, but also approved by the school officials. Coding is hard, and it's great that you can do that, but the key development here was convincing the principal to change the policy so well done on that! I like the idea of the electronic hall pass that changes colour -- probably helped convince the principal to change the policy since that's a direct benefit to the school admin. What concerns did they raise, and what do you think helped convince them?