This blog post teaches users how to build a spooky Halloween IVR project using Twilio Studio, a low-code/no-code application builder with drag and drop widgets. To start, users need to have a free or paid Twilio account, a phone number, and a phone that can receive calls. They then create a new Flow in Twilio Studio, which represents workflows, and add a Make Outgoing Call Widget to initiate a call when a user sends a text message to the Twilio phone number. The project is then configured to listen to the caller's input using a Gather Input on Call Widget and respond with pre-recorded audio messages from Twilio Assets. Users can customize the project by adding their own interactions and deploying new assets, and finally publish the completed Flow to test it and scare friends and family on Halloween.