Loved the article.
Whenever I read articles or releases by Fly.io, it makes me want to work with them. As a newbie who's interested in databases and networking, I reckon it would be an amazing experience in the team.
Unfortunately, they do not hire interns or likewise (from their job page) and I assume, from the amazing work they do, they aren't looking for beginners. =)
EDIT: Thanks to people encouraging me to apply. I'll definitely try!