source -> https://github.com/Shokodemon/smallhacks/blob/master/deprocrast.sh
just threw this little script together as a response to thread item?id=12998698 (Quit Social Media, Your Career May Depend on It (nytimes.com))
use it, change it, let me know what you think.
<3
note: add to ~/bashrc to have it always called, or cronjob it to on from 8 to 5, and off thereafter.