NixOS - Cleaning up old generations
Eventually every new NixOS user is going to run out of disk space. Or, atleast I did. Here’s how I did my housekeeping: # Keep 5 system generations sudo nix-env --profile /nix/var/nix/profiles/system --delete-generations +5 # Same for your user profile nix-env --delete-generations old # Run garbage collection (this actually frees space) sudo nix-collect-garbage -d # Clean boot entries (removes old kernels from /boot) sudo /run/current-system/bin/switch-to-configuration boot