I remember using and hating DOS. I swore never to go back once it disappeared around 1998. Using terminal is going back, so I don't use terminal. No idea what

I remember using and hating DOS. I swore never to go back once it disappeared around 1998. Using terminal is going back, so I don't use terminal. No idea what "running yarn" means, and I don't intend finding out. I'm too busying with actual web development! :-)