"I can send them the link through a course announcement but it is more convenient to put a short url on screen and have them go there." I hope you will look at

"I can send them the link through a course announcement but it is more convenient to put a short url on screen and have them go there." I hope you will look at "Oh By Codes": https://0x.co/ https://0x.co/ Standard URL shortening (although with no tracking or cookies or javascript) but you can also shorten non-urls. There's a normal FAQ on the page, but also an "HN FAQ": https://0x.co/hnfaq.html https://0x.co/hnfaq.html