As the title says - I'm curious about your experiences migrating to NixOS. Specifically, what was the learning curve like? Did you just abandon <existing OS> and move to NixOS all at once, or did you put it on a VM first etc?
The more I read about it the more attractive it looks, but I've only got the one laptop that I use for all my work and I really can't afford an extended (> 1 day) downtime because of upgrading my system.
Any and all advice gratefully received :)