this attracted attention from many media outlets. On the site, redditors commemorate their "cake day" once a year, on the anniversary of the day their account was created. Cake day adds an icon of a small slice of cake next to the user's name for 24 hours. In 2017, Reddit developed its own real-time chat software for the site. While some established subreddits have used third-party software to chat about their communities, the company built chat functions that it hopes will become an integral part of Reddit. Individual chat rooms were rolled out in 2017 and community chat rooms for members of a given subreddit were rolled out in 2018. In 2019, Reddit tested a new feature which allowed users to tip others. It was only made available for a user named Chris who goes by the alias u/shittymorph, who was known for posting well-written comments, only for them to end with the same copypasta referencing the 1998 Hell in a Cell match between wrestlers The Undertaker and Mankind. Reddit Talk was announced in April 2021 as a competitor to Clubhouse. Reddit Talk lets subreddit moderators start audio meeting rooms that mimick Clubhouse in design. In 2022, Reddit Talk was updated to support recording audio rooms and work on the web version of Reddit. A desktop app is reportedly slated for a late February release. In August 2021, the company introduced a TikTok-like short-form video feature for iOS that lets users rapidly swipe through a feed of short video content. In December 2021, the company introduced a Spotify Wrapped-like feature called Reddit Recap that recaps various statistics from January 1 to November 30 about each individual user, such as how much time they spent on Reddit, which communities they joined, and the topics that they engaged with, and allows the user to view it. Technology and design Underlying code Reddit was originally written in Common Lisp but was rewritten in Python in December 2005 for wider access to code libraries and greater development flexibility. The Python web framework that Swartz developed to run the site, web.py, is available as an open source project. , Reddit used Pylons as its web framework. Reddit was an open source project from June 18, 2008, until 2017. During that time, all of the code and libraries written for Reddit were freely available on GitHub, with the exception of the anti-spam/cheating portions. In a September