Something like the Docker solution would be fine; https://docs.docker.com/engine/reference/builder/ https://docs.docker.com/engine/reference/builder/ (Note, t

Something like the Docker solution would be fine; https://docs.docker.com/engine/reference/builder/ https://docs.docker.com/engine/reference/builder/ (Note, the right hand bar and thus the toggle isn't visible on mobile or narrow windows) There is a toggle, between day/night mode in the right hand bar on the page, it lets you toggle between the dark and light themes with a click.