Been thinking about this. Do you have a snippet you can share?
_click_preexec() {
_click_start_seconds=${_click_start_seconds:-$SECONDS}
}
_click_precmd() {
[[ $+_click_start_seconds ]] || return
if (( SECONDS - _click_start_seconds >= 20 )); then
pw-play 'mouse_click.wav' &!
fi
unset _click_start_seconds
}
preexec_functions+=(_click_preexec)
precmd_functions+=(_click_precmd)