Twilio is hosting a developer contest where participants can submit their apps built using various programming languages, including some less commonly used ones. The winner will receive $100 in Twilio credit and a $250 Amazon gift card, with bonus points awarded for creating helpful materials to demonstrate the value of the app. This is the 12th round of the contest, which aims to encourage developers from all backgrounds to try Twilio for different use cases and integrations. Submissions are due by October 17th and can be submitted online, with previous non-winners eligible to resubmit. The contest encourages creativity and experimentation with Twilio's cloud communications platform.