diff --git a/RockyLinux.md b/RockyLinux.md
index f32ec81..7c967ac 100644
--- a/RockyLinux.md
+++ b/RockyLinux.md
@@ -8,15 +8,18 @@ dnf install rpmfusion-free-release
 ```
 
 ```sh
+dnf groupinstall "Development tools"
 dnf install vim git zip htop iftop btop hdparm stress
+curl -fsSL https://rpm.nodesource.com/setup_18.x | sudo bash -
+dnf install nodejs
 ```
 
 Test
 
 ```sh
-hdparm -t  /dev/nvme0n1p1 # check disk
 btop
 stress -c 4 -i 2 -d 1
 ```
 
 
+