This is built specifically for the backbone and it is perfect. https://www.amazon.com/dp/B09DCB7YZ2?ref=ppx_pop_mob_ap_share
i’m going to go for this, next.
i think we were just too early.
¹ - actually, i’ll probably do this one next. i’ll probably then re-do my hunt for dedicated ones i can leave different-sized dedicated phones in.
i can’t fathom that backbone won’t try to jump in on this.