Here's what's happened in the past 5 years:
This project eventually evolved into Project Naptha (https://projectnaptha.com/) which has ~170,000 active users. Now, in addition to merely selecting and highlighting text, you can also use it to translate and erase text from images. It's been featured on Hacker News, Engadget, The Verge, Lifehacker, and ZDNet.
Looking back— I'm grateful for everyone who's helped along the way. To Jerome Wu for taking over the TesseractJS project. To Guillermo Webster, who woke me up when the hackathon judges walked by. And most of all to everyone who's downloaded and installed the app.