diff --git a/installSystem.sh b/installSystem.sh
index c7a149a..fd5b029 100644
--- a/installSystem.sh
+++ b/installSystem.sh
@@ -10,10 +10,6 @@ groups | grep -q sudo || return
 
 [ ! -f "/etc/apt/keyrings/packages.mozilla.org.asc" ] && wget -qO - https://packages.mozilla.org/apt/repo-signing-key.gpg | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null && echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null
 
-[ ! -d "/nix" ] && sh -c "$(curl -L https://nixos.org/nix/install)" --no-daemon
-nix-env -q | grep idea-ultimate || export NIXPKGS_ALLOW_UNFREE=1 && nix-env -iA nixpkgs.jetbrains.idea-ultimate
-nix-env -u '*'
-
 # install zen browser 
 #wget https://github.com/zen-browser/desktop/releases/latest/download/zen-x86_64.AppImage -O ~/.local/bin/firefox-zen && chmod +x ~/.local/bin/firefox-zen && rm ~/.local/bin/firefox && mv  ~/.local/bin/firefox-zen ~/.local/bin/firefox
 rm ~/.local/bin/firefox