The author, Thomas Curtis, automated various aspects of his wedding using Twilio, Python, and Google Sheets. He started by sending mass SMS invitations to guests, which resulted in a 32% acceptance rate. He then used Flask to create a web server that parsed replies and updated the spreadsheet with confirmation status. The author also implemented a system to track food choices and send reminders to guests who had not made their selection. Additionally, he created scripts to chase unresponsive guests via SMS. While the solution was not perfect, it greatly simplified the wedding planning process, allowing him to focus on other aspects of the big day.