function __tmux-maybe-create \
    --description "Create a tmux session with sensible defaults if it doesn't exist yet"
    ### Arguments:
    set session_name $argv[1]
    set session_dir $argv[2]

    if pgrep tmux 2>&1 >/dev/null; or ! tmux has -t=$session_name 2>/dev/null
        # Note:
        # Maybe it can be interesting to read from an envvar of array, where each element is a call back
        tmux new-session -ds $session_name -c $session_dir
    end

end