diff --git a/Justfile b/Justfile
index 6720300..2be5b8a 100644
--- a/Justfile
+++ b/Justfile
@@ -1,10 +1,11 @@
 FLAKE_HOME := justfile_directory()
+DEFAULT_SPECIALISATION := "default"
 
 default:
     @just --list
 
-switch:
-    nh os switch {{FLAKE_HOME}}
+switch specialisation=DEFAULT_SPECIALISATION:
+    nh os switch {{FLAKE_HOME}} {{ if specialisation == DEFAULT_SPECIALISATION { "-S" } else { "-s " + specialisation } }}
 update:
     nix flake update | spacer
 push host target: