@dot_scr

@dot_scr is a Twitter bot created by Greg Kennedy that records and shares videos of Windows 3.1 screensavers. You can view the list of screensavers here.

Author explains the implementation details:

The high level procedure is:

Choose a screensaver “unit” (driver class) from the collection of available units

Unpack a fresh Windows 3.1 installation from .zip, as well as the “payload” for the screensaver we wish to run

Run an edit function for config files in the staging area, setting the screensaver to launch and applying Windows themes

Launch (headless) a patched DOSBox binary, which is hacked to begin recording at a certain time and then exit after someduration

Use FFmpeg to compress the output into something suitable for Twitter

Upload the result video and post it in a tweet