diff --git a/install.sh b/install.sh
index 7905513..0c98c3e 100644
--- a/install.sh
+++ b/install.sh
@@ -1,12 +1,19 @@
 #!/usr/bin/env bash
 
+# Konfiguration
+DEBUG=true
+LOGFILE="/tmp/install.log"
 
-DEBUG=true  # oder false
-
+# Logging-Setup
 if [ "$DEBUG" = true ]; then
-    set -x
+  echo "🛠 Debugmodus aktiv"
+  set -x
+else
+  echo "🔒 Starte im Silent-Modus – Logfile: $LOGFILE"
+  exec > >(tee -a "$LOGFILE") 2>&1
 fi
 
+# Pausieren im Debug-Modus
 pause_if_debug() {
   if [ "$DEBUG" = true ]; then
     printf "🔍 DEBUG: Drücke [Enter] um fortzufahren..."
@@ -14,61 +21,100 @@ pause_if_debug() {
   fi
 }
 
-# install essentials
-echo "📦 Installiere Pakete..."
-sudo apt install nala -y
-sudo nala install alacritty ninja-build gettext libtool-bin cmake g++ pkg-config unzip curl git tmux build-essential manpages-dev clangd python3-jedi zsh -y
+log() {
+  echo "$@"
+}
+
+run() {
+  if [ "$DEBUG" = true ]; then
+    "$@"
+  else
+    "$@" >> "$LOGFILE" 2>&1
+  fi
+}
+
+# ------------------------------------------------------------------------------
+log "📦 Installiere Pakete..."
+echo "deb [arch=amd64,arm64,armhf] https://deb.volian.org/volian/ scar main" | sudo tee /etc/apt/sources.list.d/volian-archive-scar-unstable.list
+    wget -qO - https://deb.volian.org/volian/scar.key | sudo tee /etc/apt/trusted.gpg.d/volian-archive-scar-unstable.gpg > /dev/null
+run sudo apt update	
+run sudo apt install nala -y
+run sudo nala install alacritty ninja-build gettext libtool-bin cmake g++ pkg-config unzip curl git tmux build-essential manpages-dev clangd python3-jedi zsh -y
 pause_if_debug
 clear
 
-echo "Lade Daten"
-git clone https://git.boergmann.it/klaas/shellskripte
-cd shellskripte
-cp ./configs/zshrc ~/.zshrc
-cp ./ssh/authorized_keys ~/.ssh/authorized_keys
-sudo sh ./ssh/ssh_password -n
+log "📥 Lade Daten"
+run git clone https://git.boergmann.it/klaas/shellskripte
+cd shellskripte || exit 1
+run cp ./configs/zshrc ~/.zshrc
+mkdir -p ~/.ssh
+run cp ./ssh/authorized_keys ~/.ssh/authorized_keys
+run sudo sh ./ssh/ssh_password -n
 pause_if_debug
 clear
 
-echo "Installiere Neovim"
+log "🧪 Installiere Neovim"
 cd ~
-git clone https://github.com/neovim/neovim
-cd neovim
-git checkout stable
-make CMAKE_BUILD_TYPE=RelWithDebInfo
-sudo make install
+run git clone https://github.com/neovim/neovim
+cd neovim || exit 1
+run git checkout stable
+run make CMAKE_BUILD_TYPE=RelWithDebInfo
+run sudo make install
 cd ~
 rm -Rf neovim
 
-# config file for nvim
-mkdir ~/.config/nvim
-cp ~/shellskripte/configs/init.vim ~/.config/nvim/init.vim
+log "⚙️ Konfiguriere Neovim"
+mkdir -p ~/.config/nvim
+run cp ~/shellskripte/configs/init.vim ~/.config/nvim/init.vim
 sh -c 'curl -fLo "${XDG_DATA_HOME:-$HOME/.local/share}"/nvim/site/autoload/plug.vim --create-dirs \
        https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
 nvim --headless +PlugInstall +qa
-# Language support for python and C
 nvim --headless -c 'CocInstall -sync coc-python' -c 'qall'
-nvim --headless -c 'CocInstall -sync coc-clang' -c 'qall'
+nvim --headless -c 'CocInstall -sync coc-clangd' -c 'qall'
 pause_if_debug
 clear
 
-echo "Installiere nodeJS"
+log "⬇️ Installiere Node.js via nvm"
 curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
 export NVM_DIR="$HOME/.nvm"
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 nvm install v20
 
-# usefull packages für nodeJS
-npm install -g yarn
-npm install -g nodemon
+log "📦 Installiere Node.js Tools"
+run npm install -g yarn
+run npm install -g nodemon
 
-# nvim language support for nodeJS
-cd ~/.local/share/nvim/plugged/coc.nvim
-yarn install
-yarn build
+log "🔌 Neovim NodeJS-Sprachunterstützung"
+cd ~/.local/share/nvim/plugged/coc.nvim || exit 1
+run yarn install
+run yarn build
 
-# aufräumen
+log "🧹 Aufräumen"
 rm -Rf ~/shellskripte
 
-# zsh nutzen
-sudo usermod -s /bin/zsh klaas
+log "🔤 Installiere JetBrainsMono Nerd Font..."
+
+FONT_DIR="$HOME/.local/share/fonts"
+mkdir -p "$FONT_DIR"
+
+# Lade nur die Mono-Version (komplettes Nerd Font Paket ist riesig)
+run wget -O "$FONT_DIR/JetBrainsMonoNerdFontMono-Regular.ttf" \
+  https://github.com/ryanoasis/nerd-fonts/releases/download/v3.1.1/JetBrainsMono.zip
+
+# Entpacken
+TEMP_FONT_ZIP="/tmp/JetBrainsMono.zip"
+run wget -O "$TEMP_FONT_ZIP" https://github.com/ryanoasis/nerd-fonts/releases/download/v3.1.1/JetBrainsMono.zip
+run unzip -o "$TEMP_FONT_ZIP" -d "$FONT_DIR/JetBrainsMono"
+
+# Optional: Nur *.ttf in den Font-Ordner verschieben
+find "$FONT_DIR/JetBrainsMono" -type f -name "*.ttf" -exec mv {} "$FONT_DIR/" \;
+rm -Rf "$FONT_DIR/JetBrainsMono" "$TEMP_FONT_ZIP"
+
+# Font-Cache aktualisieren
+run fc-cache -fv "$FONT_DIR"
+
+log "✅ JetBrainsMono Nerd Font installiert."
+
+
+log "💬 Zsh als Standardshell setzen"
+run sudo usermod -s /bin/zsh klaas