I was following the setup instructions on Digital Ocean and working through their example until got to this error:
Error in curl::curl_download(cu, tmp, handle = h) :
error setting certificate verify locations:
I've looked around and saw that some people have problems with a proxy but that isn't the problem here.
This is my first time posting here so I'm not sure the best way to provide version info, etc., so this is a paste of sessionInfo(): https://paste.ubuntu.com/p/sbGqgBv7Ry/