utility which, while running, will attempt to capture the last 30 seconds of your primary display.
press shift+super+R while running and it will dump a lot of jpegs into a folder.
you need to have libjpeg-turbo available to build.
- install https://sourceforge.net/projects/libjpeg-turbo/files/2.1.1/libjpeg-turbo-2.1.1-vc64.exe/download (or newer from libjpeg-turbo's website)
- copy turbojpeg.lib into the current directory, i.e.
cp "C:\libjpeg-turbo64\lib\turbojpeg.lib" .