Can't get into Mac Mini because it won't recognize bt keyboard and mouse and I don't have wired ones handy

I got me a new Mac mini. I am running public beta of Sonoma (maybe a big mistake :).

It won't recognize my bt keyboard and mouse.

From what I've read it is supposed to automatically go into a pairing mode if it has no connected mouse and keyboard. I press the button on each remote, and hold it, until it blinks fast. Then I wait. Nothing.

Maybe I need to do something specific with my Logitech mouse and keyboard.

Is there a way for me to use an iPad or a MacBook to be the keyboard and mouse over wifi or bluetooth?