diff --git a/justfile b/justfile
index a689698..aa8a50f 100644
--- a/justfile
+++ b/justfile
@@ -36,7 +36,13 @@ cp-prod-datastore:
 
 # Update ascend input and nixos-rebuild switch
 prod-deploy:
+    # Build on this machine (faster) and copy to prod /nix/store
+    nix copy --to ssh://192.168.1.3 .
+
+    # Update ascend input on prod machine nix configuration
     ssh 192.168.1.3 'cd /home/plul/repos/gitlab.com/plul/nixexprs; just update-ascend'
+
+    # Switch nix configuration on prod (should be fast as /nix/store should be pre-populated)
     ssh -t 192.168.1.3 'cd /home/plul/repos/gitlab.com/plul/nixexprs; just switch'
 
 prod-logs: