Mark Mahoney
banner
mark.playbackpress.com
Mark Mahoney
@mark.playbackpress.com
CS professor at Carthage College

Creator of Storyteller and founder at Playback Press
https://markm208.github.io/
https://playbackpress.com/books

I love helping people learn how to read and write code.
I added a small but valuable feature to code playbacks on Playback Press. Since the hand drawn pictures and screenshots are so important to viewers I added a way to search for comments based on the pictures.

Hit 'shift + /' on the keyboard to bring up the new media picker search dialog.
November 15, 2025 at 11:00 PM
Kenosha WI (a few days back)
March 23, 2025 at 9:05 PM
I just added the ability to share a link to an exact point in a playback using either a comment number or an event number (check out the url in the video).

This feature is perfect for students and instructors collaborating on questions, or for pro sw devs doing code reviews.
January 6, 2025 at 5:30 PM
I love having a little time off at the end of the year to add some features to code playbacks. I have just added two new features to all playbacks on Playback Press:
- comments can be read aloud for the viewer
- search for comments based on selected code
January 3, 2025 at 2:38 AM
I’m not familiar with the DrRacket environment but I think separating media (and most code comments too) from source code is preferable.

I’m working on an editor plugin tool to do that:
github.com/markm208/sto...
December 22, 2024 at 12:50 AM
A code playback is a guided code walk through of a problem and a solution.

The code below is an #Elixir program that estimates poker probabilities using the random number generator and brute force:
playbackpress.com/books/exbook...
December 7, 2024 at 10:13 PM