diff --git a/.tmux.conf b/.tmux.conf
index 26542d4..7525909 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -21,6 +21,12 @@ bind % split-window -h -c "#{pane_current_path}"
 bind -n S-Left if-shell "[ #{window_index} -ne $(tmux list-windows -F '##{window_index}' | head -1) ]" "previous-window"
 bind -n S-Right if-shell "[ #{window_index} -ne $(tmux list-windows -F '##{window_index}' | tail -1) ]" "next-window"
 
+# alt+arrow pane switching
+bind -n M-Left select-pane -L
+bind -n M-Right select-pane -R
+bind -n M-Up select-pane -U
+bind -n M-Down select-pane -D
+
 # swap windows left/right with PgUp/PgDn (no wrap)
 bind-key -n PgUp if-shell "[ #{window_index} -ne $(tmux list-windows -F '##{window_index}' | head -1) ]" "swap-window -t -1\; select-window -t -1"
 bind-key -n PgDn if-shell "[ #{window_index} -ne $(tmux list-windows -F '##{window_index}' | tail -1) ]" "swap-window -t +1\; select-window -t +1"
diff --git a/.vimrc b/.vimrc
index 5bffd40..1ec65f3 100644
--- a/.vimrc
+++ b/.vimrc
@@ -24,7 +24,6 @@ set backupdir=~/.vim/backup//
 set nobackup
 set mouse=a             " mouse support
 
-
 noremap <Up> <NOP>
 noremap <Down> <NOP>
 noremap <Left> <NOP>
diff --git a/.zshrc b/.zshrc
index daf6641..4833840 100644
--- a/.zshrc
+++ b/.zshrc
@@ -36,9 +36,10 @@ zmodload zsh/stat
 
 # plugin manager
 ZINIT_HOME="${XDG_DATA_HOME:-${HOME}}/.zinit.git"
-[ ! -d $ZINIT_HOME ] && mkdir -p "$(dirname $ZINIT_HOME)"
-[ ! -d $ZINIT_HOME/.git ] && git clone https://github.com/zdharma-continuum/zinit.git "$ZINIT_HOME"
+[ ! -d "$ZINIT_HOME" ] && mkdir -p "$(dirname $ZINIT_HOME)"
+[ ! -d "$ZINIT_HOME/.git" ] && git clone https://github.com/zdharma-continuum/zinit.git "$ZINIT_HOME"
 source "${ZINIT_HOME}/zinit.zsh"
+functions[@zinit-scheduler]="setopt localoptions; set +u; ${functions[@zinit-scheduler]}"
 
 zinit light zsh-users/zsh-autosuggestions
 zinit light zsh-users/zsh-syntax-highlighting
@@ -149,16 +150,16 @@ fi
 alias .g='git --git-dir=$HOME/.dotgit/ --work-tree=$HOME'
 
 # aliases: tmux
-alias tmuxr="tmux new-session -A -s auto"
-alias tmuxn="tmux new-session -A -s auto \; new-window"
-alias tmuxa="tmux new-session -A -s"
+alias tmuxr="tmux new-session -A -s auto"       # attach-or-create "auto"
+alias tmuxn="tmux new-session -A -s auto \; new-window" # same + new window
+alias tmuxa="tmux new-session -A -s"            # attach-or-create named
 
 # yazi wrapper (cd to dir on exit)
 function y() {
   local tmp="$(mktemp -t "yazi-cwd.XXXXXX")" cwd
   command yazi "$@" --cwd-file="$tmp"
   IFS= read -r -d '' cwd < "$tmp"
-  [ "$cwd" != "$PWD" ] && [ -d "$cwd" ] && builtin cd -- "$cwd"
+  [[ "$cwd" != "$PWD" ]] && [[ -d "$cwd" ]] && builtin cd -- "$cwd"
   rm -f -- "$tmp"
 }
 
@@ -179,7 +180,7 @@ function clip {
 function mkcd {
   : "${1:?where?}"
   [[ -e $1 ]] && { echo "file exists"; return 1 }
-  mkdir -p $1 && cd $1
+  mkdir -p "$1" && cd "$1"
 }
 
 function cdtmp {