Headless with virtual display - racket/racket GitHub Wiki
Sometimes you need a virtual display when running racket headless:
xvfb-run racket -l handin-server
you may need to install e.g.apt install xvfb
Sometimes you need a virtual display when running racket headless:
xvfb-run racket -l handin-server
you may need to install e.g.apt install xvfb