Naming tmux windows for the hosts you ssh to

tmux-window-names.zsh

# The following snippet goes into your .zshrc
# You probably want to set all occurrences of 'local' to your preferred default name.
# This also works well when replacing ssh with mosh or something similar.

# To set the default window name in your .tmux.conf, use this line
# set-option -g default-command "tmux rename-window local; zsh"

ssh() {
    if [[ $(tmux display-message -p '#W') = "local" ]]; then
        trap "tmux rename-window 'local'" INT PIPE EXIT # clean up after ctrl-c, broken pipes and other exits
        test -n "$TMUX" && tmux rename-window "$(echo "${@: -1}" | cut -d '@' -f 2)" # name the window, but ignore the uid if present
        command ssh "$@"
        tmux rename-window -t:"$(echo "${@: -1}" | cut -d '@' -f 2)" 'local' # name it back to local
        trap - INT PIPE EXIT # clear the trap
    else
        command ssh "$@"
    fi
}