The intent is to quickly spin up a server, use it for a time, and then kill it. The reason for this is that there's no reason to persist a server that will simply cost money and dare people to attempt to hack it. :)
This does necessitate a DigitalOcean account and there will be some minor cost associated with this process, which depends on the tier of performance you configure. I've had luck with the $10/mo dual processor tier. We don't need any other bells and whistles like backups or IPV6 or anything. Keep it simple.
- Sign up for a DO account if you don't have one already
- Create a new droplet - select Ubuntu 20.04 (or latest stable) and go for the $10/month option. Anything else is likely overkill.