For once I feel a little out of touch after I took a bit of a break from following the news to focus on studying, and suddenly everyone is talking about immutable distributions. What are they exactly? What are the benefits and the disadvantages of immutable systems?
I agree, when I was on other distributions I would gradually customize things until something broken; then it was easier to start from scratch than to fix my mistakes. With NixOS it still gives me the ability to tinker with things, but makes it much easier than starting from scratch when I inevitably mess it up.