diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,13 +1,11 @@
 # copnix
 
-Nix config for one machine running two OS :
+pro nixos config:
 
 - `copland`: NixOS (x86_64-linux)
-- `sohryu_darwin`: Hackintosh (x86_64-darwin), via [nix-darwin](https://github.com/nix-darwin/nix-darwin)
 
 ## Rebuild
 
 ```bash
 nh os switch .       # nixos
-nh darwin switch .   # macos
 ```