# nixdarwin-rebuild Nix modules for darwin. ``` $ nixdarwin-rebuild switch ~pkgs replacing old ‘nixdarwin-system-16.09’ installing ‘nixdarwin-system-16.09’ these derivations will be built: /nix/store/k0mba6zldws4545crfn3yljfw6n7mkay-system-path.drv /nix/store/bdim4q0xqcdqxnqiz5f9jd7wq551p8lb-nixdarwin-system-16.09.drv these paths will be fetched (0.03 MiB download, 0.08 MiB unpacked): /nix/store/glnaryvf411wy7zwp0qff92004rxj2is-silver-searcher-0.33.0 fetching path ‘/nix/store/glnaryvf411wy7zwp0qff92004rxj2is-silver-searcher-0.33.0’... *** Downloading ‘https://cache.nixos.org/nar/0zcxhx55ccndpwmwwskx7jw239aaa7b2bjgvqxpmmypky5673hm4.nar.xz’ to ‘/nix/store/glnaryvf411wy7zwp0qff92004rxj2is-silver-searcher-0.33.0’... % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 31564 100 31564 0 0 66282 0 --:--:-- --:--:-- --:--:-- 70771 building path(s) ‘/nix/store/iav0l1izb37l0l34y1jav614pv6rlc7q-system-path’ created 309 symlinks in user environment building path(s) ‘/nix/store/5m3q0v3p4jmixfpgnrjrbbdicr5wr0im-nixdarwin-system-16.09’ building path(s) ‘/nix/store/ycjkzx5lbylzb2nqcmyypjimch2jxl7n-user-environment’ created 13 symlinks in user environment Password: $ ```