I'm a React / DevOps newbie and https://fullstackopen.com/en/about https://fullstackopen.com/en/about has been exceptional. Just need a little prerequisite HTML

I'm a React / DevOps newbie and https://fullstackopen.com/en/about https://fullstackopen.com/en/about has been exceptional. Just need a little prerequisite HTML/JS knowledge, but even without I think a backend developer could grasp it with a little extra time.