feat: ccache in zshrc

.zshrc

@@ -17,6 +17,10 @@ export ZSH_CUSTOM="$HOME/.config/zsh_custom"
 # See https://github.com/ohmyzsh/ohmyzsh/wiki/Themes
 ZSH_THEME="powerlevel10k/powerlevel10k"
 
+if [[ -n $ZMX_SESSION ]]; then
+  export PS1="[$ZMX_SESSION] ${PS1}"
+fi
+
 # Set list of themes to pick from when loading at random
 # Setting this variable when ZSH_THEME=random will cause zsh to load
 # a theme from this variable instead of looking in $ZSH/themes/
@@ -118,3 +122,8 @@ source $ZSH/oh-my-zsh.sh
 
 # To customize prompt, run `p10k configure` or edit ~/.config/zsh_custom/10-p10k.zsh.
 [[ ! -f ~/.config/zsh_custom/10-p10k.zsh ]] || source ~/.config/zsh_custom/10-p10k.zsh
+export USE_CCACHE=1
+export CCACHE_EXEC=/usr/bin/ccache
+ccache -M 50G > /dev/null
+
+path=("$HOME/.nix-profile/bin" $path)