How do I move a tmux window to another session?

move-window -s $session_name[:$window_index]

The name of the session you want to move the window from (for future reference, $session_name)
The index of the window you want to move (in the session it’s currently in, of course — we’ll call this $window_index). This is actually optional — if you omit this, then it defaults to the window in focus in the session you’re pulling the window from.

# Moves from currently-focused window from session named `$session_name`
move-window -s $session_name

For example. Moving the current select window on dev to parked.

#tmux