a57bbf4e63
With this option enabled, before creating file/directories/symlinks in baseDir according to configuration, old occurences of them are removed. This prevents remainders of an old configuration (libraries, webapps, you name it) from persisting after activating a new configuration.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.