Strong possibility that I will be back in tech after almost 20 years. Reason I feel confident is that nothing has changed! I mean that in a nice way. Exceptions, of course, are containers, and, somewhat related, systemd.
Systemd is what is most relevant, and I think that what would be a good exercise to find a non-systemd distro, and convert it to systemd. Then, knowing how systemd works, contribute to the full conversion, by which I mean eliminating all those symlinks.
As far as containers go, that's all kind-of weird to me. I can fully grok Docker, but the K8s world is really confusing. If it's free and not owned or even made by Redhat (with OpenShift being the only Redhat component-which is also free), then why did IBM buy Redhat for obscene billions?