diff --git a/shell-common/.config/shell-common/aliases.sh b/shell-common/.config/shell-common/aliases.sh
index e35d681..e5f952b 100644
--- a/shell-common/.config/shell-common/aliases.sh
+++ b/shell-common/.config/shell-common/aliases.sh
@@ -1,7 +1,7 @@
 # macOS aliases
 if [[ $(uname) == "Darwin" ]]; then
     alias ls="ls -FG"
-    alias flushdns="sudo dscacheutil -flushcache && sudo killall -HUP mDNSResponder"
+    alias flushdns="sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder"
 else
     alias ls="ls -F --color=auto"
 fi
@@ -16,7 +16,11 @@ if [ -f "/etc/NIXOS" ]; then
     alias nixos-rebuild="cd ~/nixos-config && make rebuild"
 fi
 
-alias t='(tmux has-session 2>/dev/null && tmux attach) || (tmux new-session)'
-alias tma="tmux attach"
+# Tmux
+if [ -x "$(command -v tmux)" ]; then
+    alias t='(tmux has-session 2>/dev/null && tmux attach) || (tmux new-session)'
+    alias tma="tmux attach"
+fi
+
 alias last="last | head"
 alias dp="demoprompt"
diff --git a/shell-common/.config/shell-common/exports.sh b/shell-common/.config/shell-common/exports.sh
index e8896c3..ed5e681 100644
--- a/shell-common/.config/shell-common/exports.sh
+++ b/shell-common/.config/shell-common/exports.sh
@@ -39,9 +39,7 @@ fi
 
 # macOS Specific envs
 if [[ $(uname) == "Darwin" ]]; then
-    # Python user bin folder
-    [ -d $HOME/Library/Python/3.9/bin ] && export PATH=$PATH:$HOME/Library/Python/3.9/bin
-
     # Homebrew
+    export HOMEBREW_NO_ENV_HINTS=1
     [ -d /opt/homebrew ] && eval $(/opt/homebrew/bin/brew shellenv)
 fi