It made it trivial for me to deploy reproducible blocks that are also nicely integrated and automated on certain axes (DNS, LetsEncrypt, load balancer / reverse proxy, storage management, PostgreSQL databases with backups).
All of that with considerably easier to understand and debug mechanisms in my experience than doing it with old school configuration management or, even worse, manually.
Using the same software you might use at work and getting better at it, perhaps even exploring simpler distros like K3s, k0s, Minikube or whatever people use nowadays.
All of that with considerably easier to understand and debug mechanisms in my experience than doing it with old school configuration management or, even worse, manually.